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Diehl S, Trotta N, Joo K, Achenbach P, Akbar Z, Armstrong WR, Atac H, Avakian H, Baashen L, Baltzell NA, Barion L, Bashkanov M, Battaglieri M, Bedlinskiy I, Benmokhtar F, Bianconi A, Biselli AS, Bossù F, Brinkmann KT, Briscoe WJ, Bulumulla D, Burkert V, Capobianco R, Carman DS, Carvajal JC, Celentano A, Charles G, Chatagnon P, Chesnokov V, Ciullo G, Cole PL, Contalbrigo M, Costantini G, Crede V, D'Angelo A, Dashyan N, De Vita R, Deur A, Djalali C, Dupre R, Ehrhart M, El Alaoui A, El Fassi L, Elouadrhiri L, Fegan S, Filippi A, Gavalian G, Glazier DI, Golubenko AA, Gosta G, Gothe RW, Gotra Y, Griffioen K, Hafidi K, Hakobyan H, Hattawy M, Hayward TB, Heddle D, Hobart A, Holtrop M, Illari I, Ireland DG, Isupov EL, Jo HS, Johnston R, Keller D, Khachatryan M, Khanal A, Kim A, Kim W, Klimenko V, Kripko A, Kubarovsky V, Kuhn SE, Lagerquist V, Lanza L, Leali M, Lee S, Lenisa P, Li X, MacGregor IJD, Marchand D, Mascagna V, Matousek G, McKinnon B, McLauchlin C, Meziani ZE, Migliorati S, Milner RG, Mineeva T, Mirazita M, Mokeev V, Moran P, Munoz Camacho C, Naidoo P, Neupane K, Niccolai S, Niculescu G, Osipenko M, Pandey P, Paolone M, Pappalardo LL, Paremuzyan R, Paul SJ, Phelps W, Pilleux N, Pokhrel M, Poudel J, Price JW, Prok Y, Radic A, Raue BA, Reed T, Richards J, Ripani M, Ritman J, Rossi P, Sabatié F, Salgado C, Schadmand S, Schmidt A, Sharabian YG, Shrestha U, Sokhan D, Sparveris N, Spreafico M, Stepanyan S, Strakovsky I, Strauch S, Turisini M, Tyson R, Ungaro M, Vallarino S, Venturelli L, Voskanyan H, Voutier E, Watts DP, Wei X, Williams R, Wishart R, Wood MH, Yurov M, Zachariou N, Zhao ZW, Zurek M. First Measurement of Hard Exclusive π^{-}Δ^{++} Electroproduction Beam-Spin Asymmetries off the Proton. Phys Rev Lett 2023; 131:021901. [PMID: 37505937 DOI: 10.1103/physrevlett.131.021901] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Revised: 05/22/2023] [Accepted: 06/20/2023] [Indexed: 07/30/2023]
Abstract
The polarized cross-section ratio σ_{LT^{'}}/σ_{0} from hard exclusive π^{-}Δ^{++} electroproduction off an unpolarized hydrogen target has been extracted based on beam-spin asymmetry measurements using a 10.2 GeV/10.6 GeV incident electron beam and the CLAS12 spectrometer at Jefferson Lab. The study, which provides the first observation of this channel in the deep-inelastic regime, focuses on very forward-pion kinematics in the valence regime, and photon virtualities ranging from 1.5 GeV^{2} up to 7 GeV^{2}. The reaction provides a novel access to the d-quark content of the nucleon and to p→Δ^{++} transition generalized parton distributions. A comparison to existing results for hard exclusive π^{+}n and π^{0}p electroproduction is provided, which shows a clear impact of the excitation mechanism, encoded in transition generalized parton distributions, on the asymmetry.
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Affiliation(s)
- S Diehl
- University of Connecticut, Storrs, Connecticut 06269, USA
- II Physikalisches Institut der Universitaet Giessen, 35392 Giessen, Germany
| | - N Trotta
- University of Connecticut, Storrs, Connecticut 06269, USA
| | - K Joo
- University of Connecticut, Storrs, Connecticut 06269, USA
| | - P Achenbach
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - Z Akbar
- Florida State University, Tallahassee, Florida 32306, USA
- University of Virginia, Charlottesville, Virginia 22901, USA
| | - W R Armstrong
- Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - H Atac
- Temple University, Philadelphia, Pennsylvania 19122, USA
| | - H Avakian
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - L Baashen
- Florida International University, Miami, Florida 33199, USA
| | - N A Baltzell
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - L Barion
- INFN, Sezione di Ferrara, 44100 Ferrara, Italy
| | - M Bashkanov
- University of York, York YO10 5DD, United Kingdom
| | | | - I Bedlinskiy
- National Research Centre Kurchatov Institute-TEP, Moscow, 117259, Russia
| | - F Benmokhtar
- Duquesne University, 600 Forbes Avenue, Pittsburgh, Pennsylvania 15282, USA
| | - A Bianconi
- INFN, Sezione di Pavia, 27100 Pavia, Italy
- Università degli Studi di Brescia, 25123 Brescia, Italy
| | - A S Biselli
- Fairfield University, Fairfield Connecticut 06824, USA
| | - F Bossù
- IRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
| | - K-T Brinkmann
- II Physikalisches Institut der Universitaet Giessen, 35392 Giessen, Germany
| | - W J Briscoe
- The George Washington University, Washington, D.C. 20052, USA
| | - D Bulumulla
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - V Burkert
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - R Capobianco
- University of Connecticut, Storrs, Connecticut 06269, USA
| | - D S Carman
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - J C Carvajal
- Florida International University, Miami, Florida 33199, USA
| | - A Celentano
- INFN, Sezione di Genova, 16146 Genova, Italy
| | - G Charles
- Université Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - P Chatagnon
- Université Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - V Chesnokov
- Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University, 119234 Moscow, Russia
| | - G Ciullo
- Università di Ferrara, 44121 Ferrara, Italy
- INFN, Sezione di Ferrara, 44100 Ferrara, Italy
| | - P L Cole
- Lamar University, 4400 MLK Boulevard, P.O. Box 10046, Beaumont, Texas 77710, USA
| | | | - G Costantini
- INFN, Sezione di Pavia, 27100 Pavia, Italy
- Università degli Studi di Brescia, 25123 Brescia, Italy
| | - V Crede
- Florida State University, Tallahassee, Florida 32306, USA
| | - A D'Angelo
- INFN, Sezione di Roma Tor Vergata, 00133 Rome, Italy
- Università di Roma Tor Vergata, 00133 Rome, Italy
| | - N Dashyan
- Yerevan Physics Institute, 375036 Yerevan, Armenia
| | - R De Vita
- INFN, Sezione di Genova, 16146 Genova, Italy
| | - A Deur
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - C Djalali
- Ohio University, Athens, Ohio 45701, USA
- University of South Carolina, Columbia, South Carolina 29208, USA
| | - R Dupre
- Université Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France
| | - M Ehrhart
- Université Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France
| | - A El Alaoui
- Universidad Técnica Federico Santa María, Casilla 110-V Valparaíso, Chile
| | - L El Fassi
- Mississippi State University, Mississippi State, Mississippi 39762-5167, USA
| | - L Elouadrhiri
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - S Fegan
- University of York, York YO10 5DD, United Kingdom
| | - A Filippi
- INFN, Sezione di Torino, 10125 Torino, Italy
| | - G Gavalian
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - D I Glazier
- University of Glasgow, Glasgow G12 8QQ, United Kingdom
| | - A A Golubenko
- Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University, 119234 Moscow, Russia
| | - G Gosta
- INFN, Sezione di Pavia, 27100 Pavia, Italy
- Università degli Studi di Brescia, 25123 Brescia, Italy
| | - R W Gothe
- University of South Carolina, Columbia, South Carolina 29208, USA
| | - Y Gotra
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - K Griffioen
- College of William and Mary, Williamsburg, Virginia 23187-8795, USA
| | - K Hafidi
- Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - H Hakobyan
- Universidad Técnica Federico Santa María, Casilla 110-V Valparaíso, Chile
| | - M Hattawy
- Argonne National Laboratory, Argonne, Illinois 60439, USA
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - T B Hayward
- University of Connecticut, Storrs, Connecticut 06269, USA
| | - D Heddle
- Christopher Newport University, Newport News, Virginia 23606, USA
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - A Hobart
- Université Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France
| | - M Holtrop
- University of New Hampshire, Durham, New Hampshire 03824-3568, USA
| | - I Illari
- The George Washington University, Washington, D.C. 20052, USA
| | - D G Ireland
- University of Glasgow, Glasgow G12 8QQ, United Kingdom
| | - E L Isupov
- Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University, 119234 Moscow, Russia
| | - H S Jo
- Kyungpook National University, Daegu 41566, Republic of Korea
| | - R Johnston
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139-4307, USA
| | - D Keller
- University of Virginia, Charlottesville, Virginia 22901, USA
| | - M Khachatryan
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - A Khanal
- Florida International University, Miami, Florida 33199, USA
| | - A Kim
- University of Connecticut, Storrs, Connecticut 06269, USA
| | - W Kim
- Kyungpook National University, Daegu 41566, Republic of Korea
| | - V Klimenko
- University of Connecticut, Storrs, Connecticut 06269, USA
| | - A Kripko
- II Physikalisches Institut der Universitaet Giessen, 35392 Giessen, Germany
| | - V Kubarovsky
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - S E Kuhn
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - V Lagerquist
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - L Lanza
- INFN, Sezione di Roma Tor Vergata, 00133 Rome, Italy
- Università di Roma Tor Vergata, 00133 Rome, Italy
| | - M Leali
- INFN, Sezione di Pavia, 27100 Pavia, Italy
- Università degli Studi di Brescia, 25123 Brescia, Italy
| | - S Lee
- Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - P Lenisa
- Università di Ferrara, 44121 Ferrara, Italy
- INFN, Sezione di Ferrara, 44100 Ferrara, Italy
| | - X Li
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139-4307, USA
| | | | - D Marchand
- Université Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France
| | - V Mascagna
- INFN, Sezione di Pavia, 27100 Pavia, Italy
- Università degli Studi dell'Insubria, 22100 Como, Italy
- Università degli Studi di Brescia, 25123 Brescia, Italy
| | - G Matousek
- Duke University, Durham, North Carolina 27708-0305, USA
| | - B McKinnon
- University of Glasgow, Glasgow G12 8QQ, United Kingdom
| | - C McLauchlin
- University of South Carolina, Columbia, South Carolina 29208, USA
| | - Z E Meziani
- Argonne National Laboratory, Argonne, Illinois 60439, USA
- Temple University, Philadelphia, Pennsylvania 19122, USA
| | - S Migliorati
- INFN, Sezione di Pavia, 27100 Pavia, Italy
- Università degli Studi di Brescia, 25123 Brescia, Italy
| | - R G Milner
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139-4307, USA
| | - T Mineeva
- Universidad Técnica Federico Santa María, Casilla 110-V Valparaíso, Chile
| | - M Mirazita
- INFN, Laboratori Nazionali di Frascati, 00044 Frascati, Italy
| | - V Mokeev
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - P Moran
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139-4307, USA
| | - C Munoz Camacho
- Université Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France
| | - P Naidoo
- University of Glasgow, Glasgow G12 8QQ, United Kingdom
| | - K Neupane
- University of South Carolina, Columbia, South Carolina 29208, USA
| | - S Niccolai
- Université Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France
| | - G Niculescu
- James Madison University, Harrisonburg, Virginia 22807, USA
| | - M Osipenko
- INFN, Sezione di Genova, 16146 Genova, Italy
| | - P Pandey
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - M Paolone
- New Mexico State University, P.O. Box 30001, Las Cruces, New Mexico 88003, USA
- Temple University, Philadelphia, Pennsylvania 19122, USA
| | - L L Pappalardo
- Università di Ferrara, 44121 Ferrara, Italy
- INFN, Sezione di Ferrara, 44100 Ferrara, Italy
| | - R Paremuzyan
- University of New Hampshire, Durham, New Hampshire 03824-3568, USA
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - S J Paul
- University of California Riverside, 900 University Avenue, Riverside, California 92521, USA
| | - W Phelps
- Christopher Newport University, Newport News, Virginia 23606, USA
- The George Washington University, Washington, D.C. 20052, USA
| | - N Pilleux
- Université Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France
| | - M Pokhrel
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - J Poudel
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - J W Price
- California State University, Dominguez Hills, Carson, California 90747, USA
| | - Y Prok
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - A Radic
- Universidad Técnica Federico Santa María, Casilla 110-V Valparaíso, Chile
| | - B A Raue
- Florida International University, Miami, Florida 33199, USA
| | - T Reed
- Florida International University, Miami, Florida 33199, USA
| | - J Richards
- University of Connecticut, Storrs, Connecticut 06269, USA
| | - M Ripani
- INFN, Sezione di Genova, 16146 Genova, Italy
| | - J Ritman
- GSI Helmholtzzentrum fur Schwerionenforschung GmbH, D-64291 Darmstadt, Germany
- Institute fur Kernphysik (Juelich), Juelich, Germany
| | - P Rossi
- INFN, Laboratori Nazionali di Frascati, 00044 Frascati, Italy
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - F Sabatié
- IRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
| | - C Salgado
- Norfolk State University, Norfolk, Virginia 23504, USA
| | - S Schadmand
- GSI Helmholtzzentrum fur Schwerionenforschung GmbH, D-64291 Darmstadt, Germany
| | - A Schmidt
- The George Washington University, Washington, D.C. 20052, USA
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139-4307, USA
| | - Y G Sharabian
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - U Shrestha
- University of Connecticut, Storrs, Connecticut 06269, USA
- Ohio University, Athens, Ohio 45701, USA
| | - D Sokhan
- IRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
- University of Glasgow, Glasgow G12 8QQ, United Kingdom
| | - N Sparveris
- Temple University, Philadelphia, Pennsylvania 19122, USA
| | - M Spreafico
- INFN, Sezione di Genova, 16146 Genova, Italy
| | - S Stepanyan
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - I Strakovsky
- The George Washington University, Washington, D.C. 20052, USA
| | - S Strauch
- University of South Carolina, Columbia, South Carolina 29208, USA
| | - M Turisini
- INFN, Laboratori Nazionali di Frascati, 00044 Frascati, Italy
| | - R Tyson
- University of Glasgow, Glasgow G12 8QQ, United Kingdom
| | - M Ungaro
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - S Vallarino
- INFN, Sezione di Ferrara, 44100 Ferrara, Italy
| | - L Venturelli
- INFN, Sezione di Pavia, 27100 Pavia, Italy
- Università degli Studi di Brescia, 25123 Brescia, Italy
| | - H Voskanyan
- Yerevan Physics Institute, 375036 Yerevan, Armenia
| | - E Voutier
- Université Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France
| | - D P Watts
- University of York, York YO10 5DD, United Kingdom
| | - X Wei
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - R Williams
- University of York, York YO10 5DD, United Kingdom
| | - R Wishart
- University of Glasgow, Glasgow G12 8QQ, United Kingdom
| | - M H Wood
- Canisius College, Buffalo, New York 14208-1517, USA
| | - M Yurov
- Mississippi State University, Mississippi State, Mississippi 39762-5167, USA
| | - N Zachariou
- University of York, York YO10 5DD, United Kingdom
| | - Z W Zhao
- Duke University, Durham, North Carolina 27708-0305, USA
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - M Zurek
- Argonne National Laboratory, Argonne, Illinois 60439, USA
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2
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Christiaens G, Defurne M, Sokhan D, Achenbach P, Akbar Z, Amaryan MJ, Atac H, Avakian H, Gayoso CA, Baashen L, Baltzell NA, Barion L, Bashkanov M, Battaglieri M, Bedlinskiy I, Benkel B, Benmokhtar F, Bianconi A, Biselli AS, Bondi M, Booth WA, Bossù F, Boiarinov S, Brinkmann KT, Briscoe WJ, Bueltmann S, Bulumulla D, Burkert VD, Cao T, Carman DS, Carvajal JC, Celentano A, Chatagnon P, Chesnokov V, Chetry T, Ciullo G, Clash G, Cole PL, Contalbrigo M, Costantini G, D'Angelo A, Dashyan N, De Vita R, Deur A, Diehl S, Dilks C, Djalali C, Dupre R, Egiyan H, Ehrhart M, Alaoui AE, Fassi LE, Elouadrhiri L, Fegan S, Filippi A, Gates K, Gavalian G, Ghandilyan Y, Gilfoyle GP, Girod FX, Glazier DI, Golubenko AA, Gosta G, Gothe RW, Gotra Y, Griffioen KA, Guidal M, Hafidi K, Hakobyan H, Hattawy M, Hauenstein F, Hayward TB, Heddle D, Hobart A, Holmberg DE, Holtrop M, Ilieva Y, Ireland DG, Isupov EL, Jo HS, Keller D, Khachatryan M, Khanal A, Kim W, Kripko A, Kubarovsky V, Kuhn SE, Lagerquist V, Lanza L, Kabir ML, Leali M, Lee S, Lenisa P, Li X, Livingston K, MacGregor IJD, Marchand D, Mascagna V, Matousek G, McKinnon B, McLauchlin C, Meziani ZE, Migliorati S, Milner RG, Mineeva T, Mirazita M, Mokeev V, Molina E, Camacho CM, Nadel-Turonski P, Naidoo P, Neupane K, Niccolai S, Nicol M, Niculescu G, Osipenko M, Ouillon M, Pandey P, Paolone M, Pappalardo LL, Paremuzyan R, Pasyuk E, Paul SJ, Phelps W, Pilleux N, Pokhrel M, Poudel J, Price JW, Prok Y, Radic A, Ramasubramanian N, Raue BA, Reed T, Richards J, Ripani M, Ritman J, Rossi P, Sabatié F, Salgado C, Schadmand S, Schmidt A, Scott MBC, Sharabian YG, Shirokov EV, Shrestha U, Simmerling P, Sparveris N, Spreafico M, Stepanyan S, Strakovsky II, Strauch S, Tan JA, Trotta N, Turisini M, Tyson R, Ungaro M, Vallarino S, Venturelli L, Voskanyan H, Voutier E, Watts DP, Wei X, Williams R, Wishart R, Wood MH, Zachariou N, Zhang J, Zhao ZW, Ziegler V, Zurek M. First CLAS12 Measurement of Deeply Virtual Compton Scattering Beam-Spin Asymmetries in the Extended Valence Region. Phys Rev Lett 2023; 130:211902. [PMID: 37295113 DOI: 10.1103/physrevlett.130.211902] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Revised: 03/24/2023] [Accepted: 04/21/2023] [Indexed: 06/12/2023]
Abstract
Deeply virtual Compton scattering (DVCS) allows one to probe generalized parton distributions describing the 3D structure of the nucleon. We report the first measurement of the DVCS beam-spin asymmetry using the CLAS12 spectrometer with a 10.2 and 10.6 GeV electron beam scattering from unpolarized protons. The results greatly extend the Q^{2} and Bjorken-x phase space beyond the existing data in the valence region and provide 1600 new data points measured with unprecedented statistical uncertainty, setting new, tight constraints for future phenomenological studies.
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Affiliation(s)
- G Christiaens
- IRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
- University of Glasgow, Glasgow G12 8QQ, United Kingdom
| | - M Defurne
- IRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
| | - D Sokhan
- IRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
- University of Glasgow, Glasgow G12 8QQ, United Kingdom
| | - P Achenbach
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - Z Akbar
- University of Virginia, Charlottesville, Virginia 22901, USA
| | - M J Amaryan
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - H Atac
- Temple University, Philadelphia, Pennsylvania 19122, USA
| | - H Avakian
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - C Ayerbe Gayoso
- College of William and Mary, Williamsburg, Virginia 23187-8795, USA
| | - L Baashen
- Florida International University, Miami, Florida 33199, USA
| | - N A Baltzell
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - L Barion
- INFN, Sezione di Ferrara, 44100 Ferrara, Italy
| | - M Bashkanov
- University of York, York YO10 5DD, United Kingdom
| | | | - I Bedlinskiy
- National Research Centre Kurchatov Institute-ITEP, Moscow, 117259, Russia
| | - B Benkel
- Universidad Técnica Federico Santa María, Casilla 110-V Valparaíso, Chile
| | - F Benmokhtar
- Duquesne University, 600 Forbes Avenue, Pittsburgh, Pennsylvania 15282, USA
| | - A Bianconi
- Universit'a degli Studi di Brescia, 25123 Brescia, Italy
- INFN, Sezione di Pavia, 27100 Pavia, Italy
| | - A S Biselli
- Fairfield University, Fairfield, Connecticut 06824, USA
| | - M Bondi
- INFN, Sezione di Roma Tor Vergata, 00133 Rome, Italy
| | - W A Booth
- University of York, York YO10 5DD, United Kingdom
| | - F Bossù
- IRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
| | - S Boiarinov
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - K-Th Brinkmann
- II Physikalisches Institut der Universitaet Giessen, 35392 Giessen, Germany
| | - W J Briscoe
- The George Washington University, Washington, D.C. 20052, USA
| | - S Bueltmann
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - D Bulumulla
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - V D Burkert
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - T Cao
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - D S Carman
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - J C Carvajal
- Florida International University, Miami, Florida 33199, USA
| | - A Celentano
- INFN, Sezione di Genova, 16146 Genova, Italy
| | - P Chatagnon
- Université Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France
| | - V Chesnokov
- Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University, 119234 Moscow, Russia
| | - T Chetry
- Florida International University, Miami, Florida 33199, USA
- Mississippi State University, Mississippi State, Mississippi 39762-5167, USA
- Ohio University, Athens, Ohio 45701, USA
| | - G Ciullo
- INFN, Sezione di Ferrara, 44100 Ferrara, Italy
- Universita' di Ferrara, 44121 Ferrara, Italy
| | - G Clash
- University of York, York YO10 5DD, United Kingdom
| | - P L Cole
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
- Lamar University, 4400 MLK Boulevard, P.O. Box 10046, Beaumont, Texas 77710, USA
- Catholic University of America, Washington, D.C. 20064, USA
| | | | - G Costantini
- Universit'a degli Studi di Brescia, 25123 Brescia, Italy
- INFN, Sezione di Pavia, 27100 Pavia, Italy
| | - A D'Angelo
- INFN, Sezione di Roma Tor Vergata, 00133 Rome, Italy
- Universita' di Roma Tor Vergata, 00133 Rome, Italy
| | - N Dashyan
- Yerevan Physics Institute, 375036 Yerevan, Armenia
| | - R De Vita
- INFN, Sezione di Genova, 16146 Genova, Italy
| | - A Deur
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - S Diehl
- II Physikalisches Institut der Universitaet Giessen, 35392 Giessen, Germany
- University of Connecticut, Storrs, Connecticut 06269, USA
| | - C Dilks
- Duke University, Durham, North Carolina 27708-0305, USA
| | - C Djalali
- Ohio University, Athens, Ohio 45701, USA
- University of South Carolina, Columbia, South Carolina 29208, USA
| | - R Dupre
- Université Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France
| | - H Egiyan
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - M Ehrhart
- Université Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France
| | - A El Alaoui
- Universidad Técnica Federico Santa María, Casilla 110-V Valparaíso, Chile
| | - L El Fassi
- Mississippi State University, Mississippi State, Mississippi 39762-5167, USA
| | - L Elouadrhiri
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - S Fegan
- University of York, York YO10 5DD, United Kingdom
| | - A Filippi
- INFN, Sezione di Torino, 10125 Torino, Italy
| | - K Gates
- University of Glasgow, Glasgow G12 8QQ, United Kingdom
| | - G Gavalian
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - Y Ghandilyan
- Yerevan Physics Institute, 375036 Yerevan, Armenia
| | - G P Gilfoyle
- University of Richmond, Richmond, Virginia 23173, USA
| | - F X Girod
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - D I Glazier
- University of Glasgow, Glasgow G12 8QQ, United Kingdom
| | - A A Golubenko
- Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University, 119234 Moscow, Russia
| | - G Gosta
- Universit'a degli Studi di Brescia, 25123 Brescia, Italy
| | - R W Gothe
- University of South Carolina, Columbia, South Carolina 29208, USA
| | - Y Gotra
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - K A Griffioen
- College of William and Mary, Williamsburg, Virginia 23187-8795, USA
| | - M Guidal
- Université Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France
| | - K Hafidi
- Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - H Hakobyan
- Universidad Técnica Federico Santa María, Casilla 110-V Valparaíso, Chile
| | - M Hattawy
- Old Dominion University, Norfolk, Virginia 23529, USA
- Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - F Hauenstein
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - T B Hayward
- University of Connecticut, Storrs, Connecticut 06269, USA
| | - D Heddle
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
- Christopher Newport University, Newport News, Virginia 23606, USA
| | - A Hobart
- Université Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France
| | - D E Holmberg
- College of William and Mary, Williamsburg, Virginia 23187-8795, USA
| | - M Holtrop
- University of New Hampshire, Durham, New Hampshire 03824-3568, USA
| | - Y Ilieva
- University of South Carolina, Columbia, South Carolina 29208, USA
| | - D G Ireland
- University of Glasgow, Glasgow G12 8QQ, United Kingdom
| | - E L Isupov
- Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University, 119234 Moscow, Russia
| | - H S Jo
- Kyungpook National University, Daegu 41566, Republic of Korea
| | - D Keller
- University of Virginia, Charlottesville, Virginia 22901, USA
| | - M Khachatryan
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - A Khanal
- Florida International University, Miami, Florida 33199, USA
| | - W Kim
- Kyungpook National University, Daegu 41566, Republic of Korea
| | - A Kripko
- II Physikalisches Institut der Universitaet Giessen, 35392 Giessen, Germany
| | - V Kubarovsky
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - S E Kuhn
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - V Lagerquist
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - L Lanza
- INFN, Sezione di Roma Tor Vergata, 00133 Rome, Italy
| | - M L Kabir
- Mississippi State University, Mississippi State, Mississippi 39762-5167, USA
| | - M Leali
- Universit'a degli Studi di Brescia, 25123 Brescia, Italy
- INFN, Sezione di Pavia, 27100 Pavia, Italy
| | - S Lee
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139-4307, USA
| | - P Lenisa
- INFN, Sezione di Ferrara, 44100 Ferrara, Italy
- Universita' di Ferrara, 44121 Ferrara, Italy
| | - X Li
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139-4307, USA
| | - K Livingston
- University of Glasgow, Glasgow G12 8QQ, United Kingdom
| | | | - D Marchand
- Université Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France
| | - V Mascagna
- Universit'a degli Studi di Brescia, 25123 Brescia, Italy
- INFN, Sezione di Pavia, 27100 Pavia, Italy
- Università degli Studi dell'Insubria, 22100 Como, Italy
| | - G Matousek
- Duke University, Durham, North Carolina 27708-0305, USA
| | - B McKinnon
- University of Glasgow, Glasgow G12 8QQ, United Kingdom
| | - C McLauchlin
- University of South Carolina, Columbia, South Carolina 29208, USA
| | - Z E Meziani
- Temple University, Philadelphia, Pennsylvania 19122, USA
- Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - S Migliorati
- Universit'a degli Studi di Brescia, 25123 Brescia, Italy
- INFN, Sezione di Pavia, 27100 Pavia, Italy
| | - R G Milner
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139-4307, USA
| | - T Mineeva
- Universidad Técnica Federico Santa María, Casilla 110-V Valparaíso, Chile
| | - M Mirazita
- INFN, Laboratori Nazionali di Frascati, 00044 Frascati, Italy
| | - V Mokeev
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - E Molina
- Universidad Técnica Federico Santa María, Casilla 110-V Valparaíso, Chile
| | - C Munoz Camacho
- Université Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France
| | - P Nadel-Turonski
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - P Naidoo
- University of Glasgow, Glasgow G12 8QQ, United Kingdom
| | - K Neupane
- University of South Carolina, Columbia, South Carolina 29208, USA
| | - S Niccolai
- Université Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France
| | - M Nicol
- University of York, York YO10 5DD, United Kingdom
| | - G Niculescu
- James Madison University, Harrisonburg, Virginia 22807, USA
| | - M Osipenko
- INFN, Sezione di Genova, 16146 Genova, Italy
| | - M Ouillon
- Université Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France
| | - P Pandey
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - M Paolone
- Temple University, Philadelphia, Pennsylvania 19122, USA
- New Mexico State University, P.O. Box 30001, Las Cruces, New Mexico 88003, USA
| | - L L Pappalardo
- INFN, Sezione di Ferrara, 44100 Ferrara, Italy
- Universita' di Ferrara, 44121 Ferrara, Italy
| | - R Paremuzyan
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
- University of New Hampshire, Durham, New Hampshire 03824-3568, USA
| | - E Pasyuk
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - S J Paul
- University of California Riverside, 900 University Avenue, Riverside, California 92521, USA
| | - W Phelps
- The George Washington University, Washington, D.C. 20052, USA
- Christopher Newport University, Newport News, Virginia 23606, USA
| | - N Pilleux
- Université Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France
| | - M Pokhrel
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - J Poudel
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - J W Price
- California State University, Dominguez Hills, Carson, California 90747, USA
| | - Y Prok
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - A Radic
- Universidad Técnica Federico Santa María, Casilla 110-V Valparaíso, Chile
| | | | - B A Raue
- Florida International University, Miami, Florida 33199, USA
| | - Trevor Reed
- Florida International University, Miami, Florida 33199, USA
| | - J Richards
- University of Connecticut, Storrs, Connecticut 06269, USA
| | - M Ripani
- INFN, Sezione di Genova, 16146 Genova, Italy
| | - J Ritman
- GSI Helmholtzzentrum fur Schwerionenforschung GmbH, D 64291 Darmstadt, Germany
- Institute fur Kernphysik (Juelich), 52428 Juelich, Germany
| | - P Rossi
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
- INFN, Laboratori Nazionali di Frascati, 00044 Frascati, Italy
| | - F Sabatié
- IRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
| | - C Salgado
- Norfolk State University, Norfolk, Virginia 23504, USA
| | - S Schadmand
- GSI Helmholtzzentrum fur Schwerionenforschung GmbH, D 64291 Darmstadt, Germany
- Institute fur Kernphysik (Juelich), 52428 Juelich, Germany
| | - A Schmidt
- The George Washington University, Washington, D.C. 20052, USA
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139-4307, USA
| | - M B C Scott
- Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - Y G Sharabian
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - E V Shirokov
- Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University, 119234 Moscow, Russia
| | - U Shrestha
- Ohio University, Athens, Ohio 45701, USA
- University of Connecticut, Storrs, Connecticut 06269, USA
| | - P Simmerling
- University of Connecticut, Storrs, Connecticut 06269, USA
| | - N Sparveris
- Temple University, Philadelphia, Pennsylvania 19122, USA
| | - M Spreafico
- INFN, Sezione di Genova, 16146 Genova, Italy
| | - S Stepanyan
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - I I Strakovsky
- The George Washington University, Washington, D.C. 20052, USA
| | - S Strauch
- University of South Carolina, Columbia, South Carolina 29208, USA
| | - J A Tan
- Kyungpook National University, Daegu 41566, Republic of Korea
| | - N Trotta
- University of Connecticut, Storrs, Connecticut 06269, USA
| | - M Turisini
- INFN, Laboratori Nazionali di Frascati, 00044 Frascati, Italy
| | - R Tyson
- University of Glasgow, Glasgow G12 8QQ, United Kingdom
| | - M Ungaro
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - S Vallarino
- INFN, Sezione di Ferrara, 44100 Ferrara, Italy
| | - L Venturelli
- Universit'a degli Studi di Brescia, 25123 Brescia, Italy
- INFN, Sezione di Pavia, 27100 Pavia, Italy
| | - H Voskanyan
- Yerevan Physics Institute, 375036 Yerevan, Armenia
| | - E Voutier
- Université Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France
| | - D P Watts
- University of York, York YO10 5DD, United Kingdom
| | - X Wei
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - R Williams
- University of York, York YO10 5DD, United Kingdom
| | - R Wishart
- University of Glasgow, Glasgow G12 8QQ, United Kingdom
| | - M H Wood
- Canisius College, Buffalo, New York 14208, USA
| | - N Zachariou
- University of York, York YO10 5DD, United Kingdom
| | - J Zhang
- University of Virginia, Charlottesville, Virginia 22901, USA
| | - Z W Zhao
- Old Dominion University, Norfolk, Virginia 23529, USA
- Duke University, Durham, North Carolina 27708-0305, USA
| | - V Ziegler
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - M Zurek
- Argonne National Laboratory, Argonne, Illinois 60439, USA
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3
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Chetry T, El Fassi L, Brooks WK, Dupré R, El Alaoui A, Hafidi K, Achenbach P, Adhikari KP, Akbar Z, Armstrong WR, Arratia M, Atac H, Avakian H, Baashen L, Baltzell NA, Barion L, Bashkanov M, Battaglieri M, Bedlinskiy I, Benkel B, Benmokhtar F, Bianconi A, Biselli AS, Bondi M, Booth WA, Bossù F, Boiarinov S, Brinkmann KT, Briscoe WJ, Bulumulla D, Burkert VD, Carman DS, Carvajal JC, Celentano A, Chatagnon P, Chesnokov V, Ciullo G, Cole PL, Contalbrigo M, Costantini G, D'Angelo A, Dashyan N, De Vita R, Defurne M, Deur A, Diehl S, Djalali C, Egiyan H, Elouadrhiri L, Eugenio P, Fegan S, Filippi A, Gavalian G, Ghandilyan Y, Gilfoyle GP, Glazier DI, Golubenko AA, Gosta G, Gothe RW, Griffioen KA, Guidal M, Guo L, Hakobyan H, Hattawy M, Hayward TB, Heddle D, Hobart A, Holtrop M, Ilieva Y, Ireland DG, Isupov EL, Jenkins D, Jo HS, Kabir ML, Khanal A, Khandaker M, Kim A, Kim W, Klein FJ, Kripko A, Kubarovsky V, Lagerquist V, Lanza L, Leali M, Lee S, Lenisa P, Li X, Livingston K, MacGregor IJD, Marchand D, Mascagna V, McKinnon B, McLauchlin C, Meziani ZE, Migliorati S, Mineeva T, Mirazita M, Mokeev V, Munoz Camacho C, Nadel-Turonski P, Neupane K, Niccolai S, Nicol M, Niculescu G, Osipenko M, Ostrovidov AI, Pandey P, Paolone M, Pappalardo LL, Paremuzyan R, Pasyuk E, Paul SJ, Phelps W, Pilleux N, Pokhrel M, Poudel J, Price JW, Prok Y, Raue BA, Reed T, Richards J, Ripani M, Ritman J, Rosner G, Sabatié F, Salgado C, Schadmand S, Schmidt A, Schumacher RA, Sharabian YG, Shirokov EV, Shrestha U, Simmerling P, Sokhan D, Sparveris N, Stepanyan S, Strakovsky II, Strauch S, Tan JA, Trotta N, Tyson R, Ungaro M, Vallarino S, Venturelli L, Voskanyan H, Voutier E, Wei X, Weinstein LB, Williams R, Wishart R, Wood MH, Yurov M, Zachariou N, Zhao ZW, Zurek M. First Measurement of Λ Electroproduction off Nuclei in the Current and Target Fragmentation Regions. Phys Rev Lett 2023; 130:142301. [PMID: 37084423 DOI: 10.1103/physrevlett.130.142301] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Revised: 02/01/2023] [Accepted: 02/24/2023] [Indexed: 05/03/2023]
Abstract
We report results of Λ hyperon production in semi-inclusive deep-inelastic scattering off deuterium, carbon, iron, and lead targets obtained with the CLAS detector and the Continuous Electron Beam Accelerator Facility 5.014 GeV electron beam. These results represent the first measurements of the Λ multiplicity ratio and transverse momentum broadening as a function of the energy fraction (z) in the current and target fragmentation regions. The multiplicity ratio exhibits a strong suppression at high z and an enhancement at low z. The measured transverse momentum broadening is an order of magnitude greater than that seen for light mesons. This indicates that the propagating entity interacts very strongly with the nuclear medium, which suggests that propagation of diquark configurations in the nuclear medium takes place at least part of the time, even at high z. The trends of these results are qualitatively described by the Giessen Boltzmann-Uehling-Uhlenbeck transport model, particularly for the multiplicity ratios. These observations will potentially open a new era of studies of the structure of the nucleon as well as of strange baryons.
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Affiliation(s)
- T Chetry
- Florida International University, Miami, Florida 33199, USA
- Mississippi State University, Mississippi State, Mississippi 39762-5167, USA
| | - L El Fassi
- Mississippi State University, Mississippi State, Mississippi 39762-5167, USA
| | - W K Brooks
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
- Universidad Técnica Federico Santa María, Casilla, 110-V Valparaíso, Chile
- Center for Science and Technology of Valparaíso, 699 Valparaíso, Chile
- SAPHIR Millennium Science Institute, Santiago, Chile
| | - R Dupré
- Universit'e Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France
| | - A El Alaoui
- Universidad Técnica Federico Santa María, Casilla, 110-V Valparaíso, Chile
| | - K Hafidi
- Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - P Achenbach
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - K P Adhikari
- Mississippi State University, Mississippi State, Mississippi 39762-5167, USA
| | - Z Akbar
- University of Virginia, Charlottesville, Virginia 22901, USA
| | - W R Armstrong
- Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - M Arratia
- University of California Riverside, 900 University Avenue, Riverside, California 92521, USA
| | - H Atac
- Temple University, Philadelphia, Pennsylvania 19122, USA
| | - H Avakian
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - L Baashen
- Florida International University, Miami, Florida 33199, USA
| | - N A Baltzell
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - L Barion
- INFN, Sezione di Ferrara, 44100 Ferrara, Italy
| | - M Bashkanov
- University of York, York YO10 5DD, United Kingdom
| | | | - I Bedlinskiy
- National Research Centre Kurchatov Institute - ITEP, Moscow 117259, Russia
| | - B Benkel
- Universidad Técnica Federico Santa María, Casilla, 110-V Valparaíso, Chile
| | - F Benmokhtar
- Duquesne University, 600 Forbes Avenue, Pittsburgh, Pennsylvania 15282, USA
| | - A Bianconi
- INFN, Sezione di Pavia, 27100 Pavia, Italy
- Universit'a degli Studi di Brescia, 25123 Brescia, Italy
| | - A S Biselli
- Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA
- Fairfield University, Fairfield, Connecticut 06824, USA
| | - M Bondi
- INFN, Sezione di Roma Tor Vergata, 00133 Rome, Italy
| | - W A Booth
- University of York, York YO10 5DD, United Kingdom
| | - F Bossù
- IRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
| | - S Boiarinov
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - K-Th Brinkmann
- II Physikalisches Institut der Universitaet Giessen, 35392 Giessen, Germany
| | - W J Briscoe
- The George Washington University, Washington, D.C. 20052, USA
| | - D Bulumulla
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - V D Burkert
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - D S Carman
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - J C Carvajal
- Florida International University, Miami, Florida 33199, USA
| | - A Celentano
- INFN, Sezione di Genova, 16146 Genova, Italy
| | - P Chatagnon
- Universit'e Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - V Chesnokov
- Ohio University, Athens, Ohio 45701, USA
- Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University, 119234 Moscow, Russia
| | - G Ciullo
- Universita' di Ferrara, 44121 Ferrara, Italy
- INFN, Sezione di Ferrara, 44100 Ferrara, Italy
| | - P L Cole
- Catholic University of America, Washington, D.C. 20064, USA
- Lamar University, 4400 MLK Boulevard, P.O. Box 10046, Beaumont, Texas 77710, USA
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | | | - G Costantini
- INFN, Sezione di Pavia, 27100 Pavia, Italy
- Universit'a degli Studi di Brescia, 25123 Brescia, Italy
| | - A D'Angelo
- INFN, Sezione di Roma Tor Vergata, 00133 Rome, Italy
- Universita' di Roma Tor Vergata, 00133 Rome, Italy
| | - N Dashyan
- Yerevan Physics Institute, 375036 Yerevan, Armenia
| | - R De Vita
- INFN, Sezione di Genova, 16146 Genova, Italy
| | - M Defurne
- IRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
| | - A Deur
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - S Diehl
- University of Connecticut, Storrs, Connecticut 06269, USA
- II Physikalisches Institut der Universitaet Giessen, 35392 Giessen, Germany
| | - C Djalali
- Ohio University, Athens, Ohio 45701, USA
- University of South Carolina, Columbia, South Carolina 29208, USA
| | - H Egiyan
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - L Elouadrhiri
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - P Eugenio
- Florida State University, Tallahassee, Florida 32306, USA
| | - S Fegan
- University of York, York YO10 5DD, United Kingdom
| | - A Filippi
- INFN, Sezione di Torino, 10125 Torino, Italy
| | - G Gavalian
- University of New Hampshire, Durham, New Hampshire 03824-3568, USA
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - Y Ghandilyan
- Yerevan Physics Institute, 375036 Yerevan, Armenia
| | - G P Gilfoyle
- University of Richmond, Richmond, Virginia 23173, USA
| | - D I Glazier
- University of Glasgow, Glasgow G12 8QQ, United Kingdom
| | - A A Golubenko
- Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University, 119234 Moscow, Russia
| | - G Gosta
- Universit'a degli Studi di Brescia, 25123 Brescia, Italy
| | - R W Gothe
- University of South Carolina, Columbia, South Carolina 29208, USA
| | - K A Griffioen
- College of William and Mary, Williamsburg, Virginia 23187-8795, USA
| | - M Guidal
- Universit'e Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France
| | - L Guo
- Florida International University, Miami, Florida 33199, USA
| | - H Hakobyan
- Universidad Técnica Federico Santa María, Casilla, 110-V Valparaíso, Chile
| | - M Hattawy
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - T B Hayward
- University of Connecticut, Storrs, Connecticut 06269, USA
| | - D Heddle
- Christopher Newport University, Newport News, Virginia 23606, USA
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - A Hobart
- Universit'e Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France
| | - M Holtrop
- University of New Hampshire, Durham, New Hampshire 03824-3568, USA
| | - Y Ilieva
- University of South Carolina, Columbia, South Carolina 29208, USA
| | - D G Ireland
- University of Glasgow, Glasgow G12 8QQ, United Kingdom
| | - E L Isupov
- Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University, 119234 Moscow, Russia
| | - D Jenkins
- Virginia Tech, Blacksburg, Virginia 24061-0435, USA
| | - H S Jo
- Kyungpook National University, Daegu 41566, Republic of Korea
| | - M L Kabir
- Mississippi State University, Mississippi State, Mississippi 39762-5167, USA
| | - A Khanal
- Florida International University, Miami, Florida 33199, USA
| | - M Khandaker
- Norfolk State University, Norfolk, Virginia 23504, USA
| | - A Kim
- University of Connecticut, Storrs, Connecticut 06269, USA
| | - W Kim
- Kyungpook National University, Daegu 41566, Republic of Korea
| | - F J Klein
- Catholic University of America, Washington, D.C. 20064, USA
| | - A Kripko
- II Physikalisches Institut der Universitaet Giessen, 35392 Giessen, Germany
| | - V Kubarovsky
- Rensselaer Polytechnic Institute, Troy, New York 12180-3590, USA
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - V Lagerquist
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - L Lanza
- INFN, Sezione di Roma Tor Vergata, 00133 Rome, Italy
| | - M Leali
- INFN, Sezione di Pavia, 27100 Pavia, Italy
- Universit'a degli Studi di Brescia, 25123 Brescia, Italy
| | - S Lee
- Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - P Lenisa
- Universita' di Ferrara, 44121 Ferrara, Italy
- INFN, Sezione di Ferrara, 44100 Ferrara, Italy
| | - X Li
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139-4307, USA
| | - K Livingston
- University of Glasgow, Glasgow G12 8QQ, United Kingdom
| | | | - D Marchand
- Universit'e Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France
| | - V Mascagna
- INFN, Sezione di Pavia, 27100 Pavia, Italy
- Universit'a degli Studi di Brescia, 25123 Brescia, Italy
| | - B McKinnon
- University of Glasgow, Glasgow G12 8QQ, United Kingdom
| | - C McLauchlin
- University of South Carolina, Columbia, South Carolina 29208, USA
| | - Z E Meziani
- Argonne National Laboratory, Argonne, Illinois 60439, USA
- Temple University, Philadelphia, Pennsylvania 19122, USA
| | - S Migliorati
- INFN, Sezione di Pavia, 27100 Pavia, Italy
- Universit'a degli Studi di Brescia, 25123 Brescia, Italy
| | - T Mineeva
- Universidad Técnica Federico Santa María, Casilla, 110-V Valparaíso, Chile
| | - M Mirazita
- INFN, Laboratori Nazionali di Frascati, 00044 Frascati, Italy
| | - V Mokeev
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - C Munoz Camacho
- Universit'e Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France
| | - P Nadel-Turonski
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - K Neupane
- University of South Carolina, Columbia, South Carolina 29208, USA
| | - S Niccolai
- Universit'e Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France
| | - M Nicol
- University of York, York YO10 5DD, United Kingdom
| | - G Niculescu
- James Madison University, Harrisonburg, Virginia 22807, USA
| | - M Osipenko
- INFN, Sezione di Genova, 16146 Genova, Italy
| | - A I Ostrovidov
- Florida State University, Tallahassee, Florida 32306, USA
| | - P Pandey
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - M Paolone
- New Mexico State University, P.O. Box 30001, Las Cruces, New Mexico 88003, USA
| | - L L Pappalardo
- Universita' di Ferrara, 44121 Ferrara, Italy
- INFN, Sezione di Ferrara, 44100 Ferrara, Italy
| | - R Paremuzyan
- University of New Hampshire, Durham, New Hampshire 03824-3568, USA
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - E Pasyuk
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - S J Paul
- University of California Riverside, 900 University Avenue, Riverside, California 92521, USA
| | - W Phelps
- Christopher Newport University, Newport News, Virginia 23606, USA
- The George Washington University, Washington, D.C. 20052, USA
| | - N Pilleux
- Universit'e Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France
| | - M Pokhrel
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - J Poudel
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - J W Price
- California State University, Dominguez Hills, Carson, California 90747, USA
| | - Y Prok
- Old Dominion University, Norfolk, Virginia 23529, USA
- University of Virginia, Charlottesville, Virginia 22901, USA
| | - B A Raue
- Florida International University, Miami, Florida 33199, USA
| | - T Reed
- Florida International University, Miami, Florida 33199, USA
| | - J Richards
- University of Connecticut, Storrs, Connecticut 06269, USA
| | - M Ripani
- INFN, Sezione di Genova, 16146 Genova, Italy
| | - J Ritman
- GSI Helmholtzzentrum fur Schwerionenforschung GmbH, D-64291 Darmstadt, Germany
- Institut fur Kernphysik (Juelich), Juelich 52428, Germany
| | - G Rosner
- University of Glasgow, Glasgow G12 8QQ, United Kingdom
| | - F Sabatié
- IRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
| | - C Salgado
- Norfolk State University, Norfolk, Virginia 23504, USA
| | - S Schadmand
- GSI Helmholtzzentrum fur Schwerionenforschung GmbH, D-64291 Darmstadt, Germany
| | - A Schmidt
- The George Washington University, Washington, D.C. 20052, USA
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139-4307, USA
| | - R A Schumacher
- Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA
| | - Y G Sharabian
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - E V Shirokov
- Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University, 119234 Moscow, Russia
| | - U Shrestha
- University of Connecticut, Storrs, Connecticut 06269, USA
| | - P Simmerling
- University of Connecticut, Storrs, Connecticut 06269, USA
| | - D Sokhan
- IRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
- University of Glasgow, Glasgow G12 8QQ, United Kingdom
| | - N Sparveris
- Temple University, Philadelphia, Pennsylvania 19122, USA
| | - S Stepanyan
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - I I Strakovsky
- The George Washington University, Washington, D.C. 20052, USA
| | - S Strauch
- The George Washington University, Washington, D.C. 20052, USA
- University of South Carolina, Columbia, South Carolina 29208, USA
| | - J A Tan
- Kyungpook National University, Daegu 41566, Republic of Korea
| | - N Trotta
- University of Connecticut, Storrs, Connecticut 06269, USA
| | - R Tyson
- University of Glasgow, Glasgow G12 8QQ, United Kingdom
| | - M Ungaro
- Rensselaer Polytechnic Institute, Troy, New York 12180-3590, USA
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - S Vallarino
- INFN, Sezione di Ferrara, 44100 Ferrara, Italy
| | - L Venturelli
- INFN, Sezione di Pavia, 27100 Pavia, Italy
- Universit'a degli Studi di Brescia, 25123 Brescia, Italy
| | - H Voskanyan
- Yerevan Physics Institute, 375036 Yerevan, Armenia
| | - E Voutier
- Universit'e Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France
| | - X Wei
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - L B Weinstein
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - R Williams
- University of York, York YO10 5DD, United Kingdom
| | - R Wishart
- University of Glasgow, Glasgow G12 8QQ, United Kingdom
| | - M H Wood
- Canisius College, Buffalo, New York 14208, USA
- University of South Carolina, Columbia, South Carolina 29208, USA
| | - M Yurov
- Mississippi State University, Mississippi State, Mississippi 39762-5167, USA
| | - N Zachariou
- University of York, York YO10 5DD, United Kingdom
| | - Z W Zhao
- Duke University, Durham, North Carolina 27708-0305, USA
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - M Zurek
- Argonne National Laboratory, Argonne, Illinois 60439, USA
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Avakian H, Hayward TB, Kotzinian A, Armstrong WR, Atac H, Ayerbe Gayoso C, Baashen L, Baltzell NA, Barion L, Bashkanov M, Battaglieri M, Bedlinskiy I, Benkel B, Benmokhtar F, Bianconi A, Biondo L, Biselli AS, Bondi M, Boiarinov S, Bossù F, Brinkman KT, Briscoe WJ, Brooks WK, Bueltmann S, Bulumulla D, Burkert VD, Capobianco R, Carman DS, Carvajal JC, Celentano A, Chatagnon P, Chesnokov V, Chetry T, Ciullo G, Cole PL, Contalbrigo M, Costantini G, D'Angelo A, Dashyan N, De Vita R, Defurne M, Deur A, Diehl S, Dilks C, Djalali C, Dupre R, Egiyan H, El Alaoui A, El Fassi L, Elouadrhiri L, Fegan S, Filippi A, Forest T, Gates K, Gavalian G, Ghandilyan Y, Glazier DI, Golubenko AA, Gosta G, Gothe RW, Gotra Y, Griffioen KA, Guidal M, Hakobyan H, Hattawy M, Hauenstein F, Heddle D, Hobart A, Holtrop M, Hyde CE, Ilieva Y, Ireland DG, Isupov EL, Jo HS, Johnston R, Joo K, Kabir ML, Keller D, Khachatryan M, Khanal A, Kim A, Kim W, Klimenko V, Kripko A, Kubarovsky V, Kuhn SE, Lagerquist V, Lanza L, Leali M, Lee S, Lenisa P, Li X, MacGregor IJD, Marchand D, Mascagna V, McKinnon B, Migliorati S, Mineeva T, Mirazita M, Mokeev V, Montgomery RA, Munoz Camacho C, Nadel-Turonski P, Naidoo P, Neupane K, Nguyen D, Niccolai S, Nicol M, Niculescu G, Osipenko M, Pandey P, Paolone M, Pappalardo LL, Paremuzyan R, Pasyuk E, Paul SJ, Phelps W, Pilleux N, Pogorelko O, Pokhrel M, Poudel J, Price JW, Prok Y, Raue BA, Reed T, Richards J, Ripani M, Ritman J, Rossi P, Sabatié F, Salgado C, Schmidt A, Sharabian YG, Shirokov EV, Shrestha U, Simmerling P, Sokhan D, Sparveris N, Stepanyan S, Strakovsky II, Strauch S, Tan JA, Trotta N, Tyson R, Ungaro M, Vallarino S, Venturelli L, Voskanyan H, Vossen A, Voutier E, Watts DP, Wei X, Wishart R, Wood MH, Zachariou N, Zhao ZW, Zurek M. Observation of Correlations between Spin and Transverse Momenta in Back-to-Back Dihadron Production at CLAS12. Phys Rev Lett 2023; 130:022501. [PMID: 36706384 DOI: 10.1103/physrevlett.130.022501] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2022] [Revised: 11/07/2022] [Accepted: 12/07/2022] [Indexed: 06/18/2023]
Abstract
We report the first measurements of deep inelastic scattering spin-dependent azimuthal asymmetries in back-to-back dihadron electroproduction in the deep inelastic scattering process. In this reaction, two hadrons are produced in opposite hemispheres along the z axis in the virtual photon-target nucleon center-of-mass frame, with the first hadron produced in the current-fragmentation region and the second in the target-fragmentation region. The data were taken with longitudinally polarized electron beams of 10.2 and 10.6 GeV incident on an unpolarized liquid-hydrogen target using the CLAS12 spectrometer at Jefferson Lab. Observed nonzero sinΔϕ modulations in ep→e^{'}pπ^{+}X events, where Δϕ is the difference of the azimuthal angles of the proton and pion in the virtual photon and target nucleon center-of-mass frame, indicate that correlations between the spin and transverse momenta of hadrons produced in the target- and current-fragmentation regions may be significant. The measured beam-spin asymmetries provide a first access in dihadron production to a previously unexplored leading-twist spin- and transverse-momentum-dependent fracture function. The fracture functions describe the hadronization of the target remnant after the hard scattering of a virtual photon off a quark in the target particle and provide a new avenue for studying nucleonic structure and hadronization.
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Affiliation(s)
- H Avakian
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - T B Hayward
- University of Connecticut, Storrs, Connecticut 06269, USA
| | - A Kotzinian
- Yerevan Physics Institute, 375036 Yerevan, Armenia
- INFN, Sezione di Torino, 10125 Torino, Italy
| | - W R Armstrong
- Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - H Atac
- Temple University, Philadelphia, Pennsylvania 19122, USA
| | - C Ayerbe Gayoso
- College of William and Mary, Williamsburg, Virginia 23187-8795, USA
| | - L Baashen
- Florida International University, Miami, Florida 33199, USA
| | - N A Baltzell
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - L Barion
- INFN, Sezione di Ferrara, 44100 Ferrara, Italy
| | - M Bashkanov
- University of York, York YO10 5DD, United Kingdom
| | | | - I Bedlinskiy
- National Research Centre Kurchatov Institute-ITEP, Moscow 117259, Russia
| | - B Benkel
- Universidad Técnica Federico Santa María, Casilla 110-V Valparaíso, Chile
| | - F Benmokhtar
- Duquesne University, 600 Forbes Avenue, Pittsburgh, Pennsylvania 15282, USA
| | - A Bianconi
- Università degli Studi di Brescia, 25123 Brescia, Italy
- INFN, Sezione di Pavia, 27100 Pavia, Italy
| | - L Biondo
- INFN, Sezione di Genova, 16146 Genova, Italy
- INFN, Sezione di Catania, 95123 Catania, Italy
- Università degli Studi di Messina, 98166 Messina, Italy
| | - A S Biselli
- Fairfield University, Fairfield, Connecticut 06824, USA
| | - M Bondi
- INFN, Sezione di Roma Tor Vergata, 00133 Rome, Italy
| | - S Boiarinov
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - F Bossù
- IRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
| | - K T Brinkman
- II. Physikalisches Institut der Universität Gießen, 35392 Gießen, Germany
| | - W J Briscoe
- The George Washington University, Washington, D.C. 20052, USA
| | - W K Brooks
- Universidad Técnica Federico Santa María, Casilla 110-V Valparaíso, Chile
| | - S Bueltmann
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - D Bulumulla
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - V D Burkert
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - R Capobianco
- University of Connecticut, Storrs, Connecticut 06269, USA
| | - D S Carman
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - J C Carvajal
- Florida International University, Miami, Florida 33199, USA
| | - A Celentano
- INFN, Sezione di Genova, 16146 Genova, Italy
| | - P Chatagnon
- Université Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France
| | - V Chesnokov
- Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University, 119234 Moscow, Russia
| | - T Chetry
- Florida International University, Miami, Florida 33199, USA
- Mississippi State University, Mississippi State, Mississippi 39762-5167, USA
- Ohio University, Athens, Ohio 45701, USA
| | - G Ciullo
- INFN, Sezione di Ferrara, 44100 Ferrara, Italy
- Università di Ferrara, 44121 Ferrara, Italy
| | - P L Cole
- Lamar University, 4400 MLK Boulevard, P.O. Box 10046, Beaumont, Texas 77710, USA
| | | | - G Costantini
- Università degli Studi di Brescia, 25123 Brescia, Italy
- INFN, Sezione di Pavia, 27100 Pavia, Italy
| | - A D'Angelo
- INFN, Sezione di Roma Tor Vergata, 00133 Rome, Italy
- Università di Roma Tor Vergata, 00133 Rome, Italy
| | - N Dashyan
- Yerevan Physics Institute, 375036 Yerevan, Armenia
| | - R De Vita
- INFN, Sezione di Genova, 16146 Genova, Italy
| | - M Defurne
- IRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
| | - A Deur
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - S Diehl
- University of Connecticut, Storrs, Connecticut 06269, USA
- II. Physikalisches Institut der Universität Gießen, 35392 Gießen, Germany
| | - C Dilks
- Duke University, Durham, North Carolina 27708-0305, USA
| | - C Djalali
- Ohio University, Athens, Ohio 45701, USA
| | - R Dupre
- Université Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France
| | - H Egiyan
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - A El Alaoui
- Universidad Técnica Federico Santa María, Casilla 110-V Valparaíso, Chile
| | - L El Fassi
- Mississippi State University, Mississippi State, Mississippi 39762-5167, USA
| | - L Elouadrhiri
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - S Fegan
- University of York, York YO10 5DD, United Kingdom
| | - A Filippi
- INFN, Sezione di Torino, 10125 Torino, Italy
| | - T Forest
- Idaho State University, Pocatello, Idaho 83209, USA
| | - K Gates
- University of Glasgow, Glasgow G12 8QQ, United Kingdom
| | - G Gavalian
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - Y Ghandilyan
- Yerevan Physics Institute, 375036 Yerevan, Armenia
| | - D I Glazier
- University of Glasgow, Glasgow G12 8QQ, United Kingdom
| | - A A Golubenko
- Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University, 119234 Moscow, Russia
| | - G Gosta
- Università degli Studi di Brescia, 25123 Brescia, Italy
- INFN, Sezione di Pavia, 27100 Pavia, Italy
| | - R W Gothe
- University of South Carolina, Columbia, South Carolina 29208, USA
| | - Y Gotra
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - K A Griffioen
- College of William and Mary, Williamsburg, Virginia 23187-8795, USA
| | - M Guidal
- Université Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France
| | - H Hakobyan
- Universidad Técnica Federico Santa María, Casilla 110-V Valparaíso, Chile
| | - M Hattawy
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - F Hauenstein
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - D Heddle
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
- Christopher Newport University, Newport News, Virginia 23606, USA
| | - A Hobart
- Université Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France
| | - M Holtrop
- University of New Hampshire, Durham, New Hampshire 03824-3568, USA
| | - C E Hyde
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - Y Ilieva
- University of South Carolina, Columbia, South Carolina 29208, USA
| | - D G Ireland
- University of Glasgow, Glasgow G12 8QQ, United Kingdom
| | - E L Isupov
- Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University, 119234 Moscow, Russia
| | - H S Jo
- Kyungpook National University, Daegu 41566, Republic of Korea
| | - R Johnston
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139-4307, USA
| | - K Joo
- University of Connecticut, Storrs, Connecticut 06269, USA
| | - M L Kabir
- Mississippi State University, Mississippi State, Mississippi 39762-5167, USA
| | - D Keller
- University of Virginia, Charlottesville, Virginia 22901, USA
| | - M Khachatryan
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - A Khanal
- Florida International University, Miami, Florida 33199, USA
| | - A Kim
- University of Connecticut, Storrs, Connecticut 06269, USA
| | - W Kim
- Kyungpook National University, Daegu 41566, Republic of Korea
| | - V Klimenko
- University of Connecticut, Storrs, Connecticut 06269, USA
| | - A Kripko
- II. Physikalisches Institut der Universität Gießen, 35392 Gießen, Germany
| | - V Kubarovsky
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - S E Kuhn
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - V Lagerquist
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - L Lanza
- INFN, Sezione di Roma Tor Vergata, 00133 Rome, Italy
| | - M Leali
- Università degli Studi di Brescia, 25123 Brescia, Italy
- INFN, Sezione di Pavia, 27100 Pavia, Italy
| | - S Lee
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139-4307, USA
| | - P Lenisa
- INFN, Sezione di Ferrara, 44100 Ferrara, Italy
- Università di Ferrara, 44121 Ferrara, Italy
| | - X Li
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139-4307, USA
| | | | - D Marchand
- Université Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France
| | - V Mascagna
- Università degli Studi di Brescia, 25123 Brescia, Italy
- INFN, Sezione di Pavia, 27100 Pavia, Italy
| | - B McKinnon
- University of Glasgow, Glasgow G12 8QQ, United Kingdom
| | - S Migliorati
- Università degli Studi di Brescia, 25123 Brescia, Italy
- INFN, Sezione di Pavia, 27100 Pavia, Italy
| | - T Mineeva
- Universidad Técnica Federico Santa María, Casilla 110-V Valparaíso, Chile
| | - M Mirazita
- INFN, Laboratori Nazionali di Frascati, 00044 Frascati, Italy
| | - V Mokeev
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | | | - C Munoz Camacho
- Université Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France
| | - P Nadel-Turonski
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - P Naidoo
- University of Glasgow, Glasgow G12 8QQ, United Kingdom
| | - K Neupane
- University of South Carolina, Columbia, South Carolina 29208, USA
| | - D Nguyen
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - S Niccolai
- Université Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France
| | - M Nicol
- University of York, York YO10 5DD, United Kingdom
| | - G Niculescu
- James Madison University, Harrisonburg, Virginia 22807, USA
| | - M Osipenko
- INFN, Sezione di Genova, 16146 Genova, Italy
| | - P Pandey
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - M Paolone
- Temple University, Philadelphia, Pennsylvania 19122, USA
- New Mexico State University, P.O. Box 30001, Las Cruces, New Mexico 88003, USA
| | - L L Pappalardo
- INFN, Sezione di Ferrara, 44100 Ferrara, Italy
- Università di Ferrara, 44121 Ferrara, Italy
| | - R Paremuzyan
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
- University of New Hampshire, Durham, New Hampshire 03824-3568, USA
| | - E Pasyuk
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - S J Paul
- University of California Riverside, 900 University Avenue, Riverside, California 92521, USA
| | - W Phelps
- The George Washington University, Washington, D.C. 20052, USA
- Christopher Newport University, Newport News, Virginia 23606, USA
| | - N Pilleux
- Université Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France
| | - O Pogorelko
- National Research Centre Kurchatov Institute-ITEP, Moscow 117259, Russia
| | - M Pokhrel
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - J Poudel
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - J W Price
- California State University, Dominguez Hills, Carson, California 90747, USA
| | - Y Prok
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - B A Raue
- Florida International University, Miami, Florida 33199, USA
| | - T Reed
- Florida International University, Miami, Florida 33199, USA
| | - J Richards
- University of Connecticut, Storrs, Connecticut 06269, USA
| | - M Ripani
- INFN, Sezione di Genova, 16146 Genova, Italy
| | - J Ritman
- GSI Helmholtzzentrum fur Schwerionenforschung GmbH, D-64291 Darmstadt, Germany
- Institute fur Kernphysik (Juelich), 52428 Juelich, Germany
| | - P Rossi
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
- INFN, Laboratori Nazionali di Frascati, 00044 Frascati, Italy
| | - F Sabatié
- IRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
| | - C Salgado
- Norfolk State University, Norfolk, Virginia 23504, USA
| | - A Schmidt
- The George Washington University, Washington, D.C. 20052, USA
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139-4307, USA
| | - Y G Sharabian
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - E V Shirokov
- Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University, 119234 Moscow, Russia
| | - U Shrestha
- University of Connecticut, Storrs, Connecticut 06269, USA
| | - P Simmerling
- University of Connecticut, Storrs, Connecticut 06269, USA
| | - D Sokhan
- IRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
- University of Glasgow, Glasgow G12 8QQ, United Kingdom
| | - N Sparveris
- Temple University, Philadelphia, Pennsylvania 19122, USA
| | - S Stepanyan
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - I I Strakovsky
- The George Washington University, Washington, D.C. 20052, USA
| | - S Strauch
- University of South Carolina, Columbia, South Carolina 29208, USA
| | - J A Tan
- Kyungpook National University, Daegu 41566, Republic of Korea
| | - N Trotta
- University of Connecticut, Storrs, Connecticut 06269, USA
| | - R Tyson
- University of Glasgow, Glasgow G12 8QQ, United Kingdom
| | - M Ungaro
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - S Vallarino
- INFN, Sezione di Ferrara, 44100 Ferrara, Italy
| | - L Venturelli
- Università degli Studi di Brescia, 25123 Brescia, Italy
- INFN, Sezione di Pavia, 27100 Pavia, Italy
| | - H Voskanyan
- Yerevan Physics Institute, 375036 Yerevan, Armenia
| | - A Vossen
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
- Duke University, Durham, North Carolina 27708-0305, USA
| | - E Voutier
- Université Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France
| | - D P Watts
- University of York, York YO10 5DD, United Kingdom
| | - X Wei
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - R Wishart
- University of Glasgow, Glasgow G12 8QQ, United Kingdom
| | - M H Wood
- Canisius College, Buffalo, New York 14208, USA
| | - N Zachariou
- University of York, York YO10 5DD, United Kingdom
| | - Z W Zhao
- Duke University, Durham, North Carolina 27708-0305, USA
| | - M Zurek
- Argonne National Laboratory, Argonne, Illinois 60439, USA
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5
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Paul SJ, Morán S, Arratia M, El Alaoui A, Hakobyan H, Brooks W, Amaryan MJ, Armstrong WR, Atac H, Baashen L, Baltzell NA, Barion L, Bashkanov M, Battaglieri M, Bedlinskiy I, Benkel B, Benmokhtar F, Bianconi A, Biondo L, Biselli AS, Bondi M, Bossù F, Boiarinov S, Brinkmann KT, Briscoe WJ, Bulumulla D, Burkert VD, Capobianco R, Carman DS, Celentano A, Chesnokov V, Chetry T, Ciullo G, Cole PL, Contalbrigo M, Costantini G, D'Angelo A, Dashyan N, De Vita R, Defurne M, Deur A, Diehl S, Dilks C, Djalali C, Dupre R, Egiyan H, El Fassi L, Eugenio P, Fegan S, Filippi A, Gavalian G, Ghandilyan Y, Gilfoyle GP, Golubenko AA, Gosta G, Gothe RW, Griffioen KA, Guidal M, Hattawy M, Hayward TB, Heddle D, Hobart A, Holtrop M, Ilieva Y, Ireland DG, Isupov EL, Jo HS, Johnston R, Joo K, Joosten S, Keller D, Khanal A, Khandaker M, Kim W, Kripko A, Kubarovsky V, Lagerquist V, Lanza L, Leali M, Lee S, Lenisa P, Li X, Livingston K, MacGregor IJD, Marchand D, Mascagna V, McKinnon B, Meziani ZE, Migliorati S, Milner RG, Mineeva T, Mirazita M, Mokeev VI, Moran P, Munoz Camacho C, Neupane K, Nguyen D, Niccolai S, Niculescu G, Osipenko M, Ostrovidov AI, Pandey P, Paolone M, Pappalardo LL, Paremuzyan R, Pasyuk E, Phelps W, Pilleux N, Pocanic D, Pogorelko O, Pokhrel M, Poudel J, Price JW, Prok Y, Raue BA, Reed T, Ripani M, Rosner G, Sabatié F, Salgado C, Schmidt A, Schumacher RA, Sharabian YG, Shirokov EV, Shrestha U, Simmerling P, Sokhan D, Sparveris N, Stepanyan S, Strakovsky II, Strauch S, Tan JA, Tyson R, Ungaro M, Vallarino S, Venturelli L, Voskanyan H, Voutier E, Wei X, Wishart R, Wood MH, Zachariou N, Zhao ZW, Ziegler V, Zurek M. Observation of Azimuth-Dependent Suppression of Hadron Pairs in Electron Scattering off Nuclei. Phys Rev Lett 2022; 129:182501. [PMID: 36374671 DOI: 10.1103/physrevlett.129.182501] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Revised: 08/26/2022] [Accepted: 09/30/2022] [Indexed: 06/16/2023]
Abstract
We present the first measurement of dihadron angular correlations in electron-nucleus scattering. The data were taken with the CLAS detector and a 5.0 GeV electron beam incident on deuterium, carbon, iron, and lead targets. Relative to deuterium, the nuclear yields of charged-pion pairs show a strong suppression for azimuthally opposite pairs, no suppression for azimuthally nearby pairs, and an enhancement of pairs with large invariant mass. These effects grow with increased nuclear size. The data are qualitatively described by the gibuu model, which suggests that hadrons form near the nuclear surface and undergo multiple scattering in nuclei.These results show that angular correlation studies can open a new way to elucidate how hadrons form and interact inside nuclei.
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Affiliation(s)
- S J Paul
- University of California Riverside, 900 University Avenue, Riverside, California 92521, USA
| | - S Morán
- University of California Riverside, 900 University Avenue, Riverside, California 92521, USA
| | - M Arratia
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
- University of California Riverside, 900 University Avenue, Riverside, California 92521, USA
| | - A El Alaoui
- Universidad Técnica Federico Santa María, Casilla 110-V Valparaíso, Chile
| | - H Hakobyan
- Universidad Técnica Federico Santa María, Casilla 110-V Valparaíso, Chile
| | - W Brooks
- Universidad Técnica Federico Santa María, Casilla 110-V Valparaíso, Chile
| | - M J Amaryan
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - W R Armstrong
- Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - H Atac
- Temple University, Philadelphia, Pennsylvania 19122, USA
| | - L Baashen
- Florida International University, Miami, Florida 33199, USA
| | - N A Baltzell
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - L Barion
- INFN, Sezione di Ferrara, 44100 Ferrara, Italy
| | - M Bashkanov
- University of York, York YO10 5DD, United Kingdom
| | | | - I Bedlinskiy
- National Research Centre Kurchatov Institute-ITEP, Moscow, 117259, Russia
| | - B Benkel
- Universidad Técnica Federico Santa María, Casilla 110-V Valparaíso, Chile
| | - F Benmokhtar
- Duquesne University, 600 Forbes Avenue, Pittsburgh, Pennsylvania 15282, USA
| | - A Bianconi
- INFN, Sezione di Pavia, 27100 Pavia, Italy
- Università degli Studi di Brescia, 25123 Brescia, Italy
| | - L Biondo
- INFN, Sezione di Genova, 16146 Genova, Italy
- INFN, Sezione di Catania, 95123 Catania, Italy
- Università degli Studi di Messina, 98166 Messina, Italy
| | - A S Biselli
- Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA
- Fairfield University, Fairfield, Connecticut 06824, USA
| | - M Bondi
- INFN, Sezione di Roma Tor Vergata, 00133 Rome, Italy
| | - F Bossù
- IRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
| | - S Boiarinov
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - K-Th Brinkmann
- II Physikalisches Institut der Universitaet Giessen, 35392 Giessen, Germany
| | - W J Briscoe
- The George Washington University, Washington, D.C. 20052, USA
| | - D Bulumulla
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - V D Burkert
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - R Capobianco
- University of Connecticut, Storrs, Connecticut 06269, USA
| | - D S Carman
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - A Celentano
- INFN, Sezione di Genova, 16146 Genova, Italy
| | - V Chesnokov
- Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University, 119234 Moscow, Russia
| | - T Chetry
- Florida International University, Miami, Florida 33199, USA
| | - G Ciullo
- Università di Ferrara, 44121 Ferrara, Italy
- INFN, Sezione di Ferrara, 44100 Ferrara, Italy
| | - P L Cole
- Catholic University of America, Washington, D.C. 20064, USA
- Lamar University, 4400 MLK Blvd, P.O. Box 10046, Beaumont, Texas 77710, USA
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | | | - G Costantini
- INFN, Sezione di Pavia, 27100 Pavia, Italy
- Università degli Studi di Brescia, 25123 Brescia, Italy
| | - A D'Angelo
- INFN, Sezione di Roma Tor Vergata, 00133 Rome, Italy
- Università di Roma Tor Vergata, 00133 Rome Italy
| | - N Dashyan
- Yerevan Physics Institute, 375036 Yerevan, Armenia
| | - R De Vita
- INFN, Sezione di Genova, 16146 Genova, Italy
| | - M Defurne
- IRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
| | - A Deur
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - S Diehl
- University of Connecticut, Storrs, Connecticut 06269, USA
- II Physikalisches Institut der Universitaet Giessen, 35392 Giessen, Germany
| | - C Dilks
- Duke University, Durham, North Carolina 27708-0305, USA
| | - C Djalali
- Ohio University, Athens, Ohio 45701, USA
- University of South Carolina, Columbia, South Carolina 29208, USA
| | - R Dupre
- Université Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France
| | - H Egiyan
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - L El Fassi
- Mississippi State University, Mississippi State, Mississippi 39762-5167, USA
| | - P Eugenio
- Florida State University, Tallahassee, Florida 32306, USA
| | - S Fegan
- University of York, York YO10 5DD, United Kingdom
| | - A Filippi
- INFN, Sezione di Torino, 10125 Torino, Italy
| | - G Gavalian
- University of New Hampshire, Durham, New Hampshire 03824-3568, USA
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - Y Ghandilyan
- Yerevan Physics Institute, 375036 Yerevan, Armenia
| | - G P Gilfoyle
- University of Richmond, Richmond, Virginia 23173, USA
| | - A A Golubenko
- Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University, 119234 Moscow, Russia
| | - G Gosta
- Università degli Studi di Brescia, 25123 Brescia, Italy
| | - R W Gothe
- University of South Carolina, Columbia, South Carolina 29208, USA
| | - K A Griffioen
- College of William and Mary, Williamsburg, Virginia 23187-8795, USA
| | - M Guidal
- Université Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France
| | - M Hattawy
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - T B Hayward
- University of Connecticut, Storrs, Connecticut 06269, USA
| | - D Heddle
- Christopher Newport University, Newport News, Virginia 23606, USA
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - A Hobart
- Université Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France
| | - M Holtrop
- University of New Hampshire, Durham, New Hampshire 03824-3568, USA
| | - Y Ilieva
- The George Washington University, Washington, D.C. 20052, USA
- University of South Carolina, Columbia, South Carolina 29208, USA
| | - D G Ireland
- University of Glasgow, Glasgow G12 8QQ, United Kingdom
| | - E L Isupov
- Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University, 119234 Moscow, Russia
| | - H S Jo
- Kyungpook National University, Daegu 41566, Republic of Korea
| | - R Johnston
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139-4307, USA
| | - K Joo
- University of Connecticut, Storrs, Connecticut 06269, USA
| | - S Joosten
- Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - D Keller
- University of Virginia, Charlottesville, Virginia 22901, USA
| | - A Khanal
- Florida International University, Miami, Florida 33199, USA
| | - M Khandaker
- Norfolk State University, Norfolk, Virginia 23504, USA
| | - W Kim
- Kyungpook National University, Daegu 41566, Republic of Korea
| | - A Kripko
- II Physikalisches Institut der Universitaet Giessen, 35392 Giessen, Germany
| | - V Kubarovsky
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - V Lagerquist
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - L Lanza
- INFN, Sezione di Roma Tor Vergata, 00133 Rome, Italy
| | - M Leali
- INFN, Sezione di Pavia, 27100 Pavia, Italy
- Università degli Studi di Brescia, 25123 Brescia, Italy
| | - S Lee
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139-4307, USA
| | - P Lenisa
- Università di Ferrara, 44121 Ferrara, Italy
- INFN, Sezione di Ferrara, 44100 Ferrara, Italy
| | - X Li
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139-4307, USA
| | - K Livingston
- University of Glasgow, Glasgow G12 8QQ, United Kingdom
| | | | - D Marchand
- Université Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France
| | - V Mascagna
- INFN, Sezione di Pavia, 27100 Pavia, Italy
- Università degli Studi di Brescia, 25123 Brescia, Italy
| | - B McKinnon
- University of Glasgow, Glasgow G12 8QQ, United Kingdom
| | - Z E Meziani
- Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - S Migliorati
- INFN, Sezione di Pavia, 27100 Pavia, Italy
- Università degli Studi di Brescia, 25123 Brescia, Italy
| | - R G Milner
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139-4307, USA
| | - T Mineeva
- Universidad Técnica Federico Santa María, Casilla 110-V Valparaíso, Chile
| | - M Mirazita
- INFN, Laboratori Nazionali di Frascati, 00044 Frascati, Italy
| | - V I Mokeev
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - P Moran
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139-4307, USA
| | - C Munoz Camacho
- Université Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France
| | - K Neupane
- University of South Carolina, Columbia, South Carolina 29208, USA
| | - D Nguyen
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - S Niccolai
- Université Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France
| | - G Niculescu
- James Madison University, Harrisonburg, Virginia 22807, USA
| | - M Osipenko
- INFN, Sezione di Genova, 16146 Genova, Italy
| | - A I Ostrovidov
- Florida State University, Tallahassee, Florida 32306, USA
| | - P Pandey
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - M Paolone
- New Mexico State University, PO Box 30001, Las Cruces, New Mexico 88003, USA
| | - L L Pappalardo
- Università di Ferrara, 44121 Ferrara, Italy
- INFN, Sezione di Ferrara, 44100 Ferrara, Italy
| | - R Paremuzyan
- University of New Hampshire, Durham, New Hampshire 03824-3568, USA
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - E Pasyuk
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - W Phelps
- Christopher Newport University, Newport News, Virginia 23606, USA
| | - N Pilleux
- Université Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France
| | - D Pocanic
- University of Virginia, Charlottesville, Virginia 22901, USA
| | - O Pogorelko
- National Research Centre Kurchatov Institute-ITEP, Moscow, 117259, Russia
| | - M Pokhrel
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - J Poudel
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - J W Price
- California State University, Dominguez Hills, Carson, California 90747, USA
| | - Y Prok
- Old Dominion University, Norfolk, Virginia 23529, USA
- University of Virginia, Charlottesville, Virginia 22901, USA
| | - B A Raue
- Florida International University, Miami, Florida 33199, USA
| | - T Reed
- Florida International University, Miami, Florida 33199, USA
| | - M Ripani
- INFN, Sezione di Genova, 16146 Genova, Italy
| | - G Rosner
- University of Glasgow, Glasgow G12 8QQ, United Kingdom
| | - F Sabatié
- IRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
| | - C Salgado
- Norfolk State University, Norfolk, Virginia 23504, USA
| | - A Schmidt
- The George Washington University, Washington, D.C. 20052, USA
| | - R A Schumacher
- Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA
| | - Y G Sharabian
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - E V Shirokov
- Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University, 119234 Moscow, Russia
| | - U Shrestha
- University of Connecticut, Storrs, Connecticut 06269, USA
| | - P Simmerling
- University of Connecticut, Storrs, Connecticut 06269, USA
| | - D Sokhan
- IRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
- University of Glasgow, Glasgow G12 8QQ, United Kingdom
| | - N Sparveris
- Temple University, Philadelphia, Pennsylvania 19122, USA
| | - S Stepanyan
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - I I Strakovsky
- The George Washington University, Washington, D.C. 20052, USA
| | - S Strauch
- The George Washington University, Washington, D.C. 20052, USA
- University of South Carolina, Columbia, South Carolina 29208, USA
| | - J A Tan
- Kyungpook National University, Daegu 41566, Republic of Korea
| | - R Tyson
- University of Glasgow, Glasgow G12 8QQ, United Kingdom
| | - M Ungaro
- Rensselaer Polytechnic Institute, Troy, New York 12180-3590, USA
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - S Vallarino
- INFN, Sezione di Ferrara, 44100 Ferrara, Italy
| | - L Venturelli
- INFN, Sezione di Pavia, 27100 Pavia, Italy
- Università degli Studi di Brescia, 25123 Brescia, Italy
| | - H Voskanyan
- Yerevan Physics Institute, 375036 Yerevan, Armenia
| | - E Voutier
- Université Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France
| | - X Wei
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - R Wishart
- University of Glasgow, Glasgow G12 8QQ, United Kingdom
| | - M H Wood
- Canisius College, Buffalo, New York 14208, USA
- University of South Carolina, Columbia, South Carolina 29208, USA
| | - N Zachariou
- University of York, York YO10 5DD, United Kingdom
| | - Z W Zhao
- Duke University, Durham, North Carolina 27708-0305, USA
| | - V Ziegler
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - M Zurek
- Argonne National Laboratory, Argonne, Illinois 60439, USA
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Hunter E, Amsler C, Breuker H, Chesnevskaya S, Costantini G, Ferragut R, Giammarchi M, Gligorova A, Gosta G, Higaki H, Kanai Y, Killian C, Kletzl V, Kraxberger V, Kuroda N, Lanz A, Leali M, Mäckel V, Maero G, Malbrunot C, Mascagna V, Matsuda Y, Migliorati S, Murtagh D, Nagata Y, Nanda A, Nowak L, Pasino E, Romé M, Simon M, Tajima M, Toso V, Ulmer S, Uggerhøj U, Venturelli L, Weiser A, Widmann E, Wolz T, Yamazaki Y, Zmeskal J. Minimizing plasma temperature for antimatter mixing experiments. EPJ Web Conf 2022. [DOI: 10.1051/epjconf/202226201007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
The ASACUSA collaboration produces a beam of antihydrogen atoms by mixing pure positron and antiproton plasmas in a strong magnetic field with a double cusp geometry. The positrons cool via cyclotron radiation inside the cryogenic trap. Low positron temperature is essential for increasing the fraction of antihydrogen atoms which reach the ground state prior to exiting the trap. Many experimental groups observe that such plasmas reach equilibrium at a temperature well above the temperature of the surrounding electrodes. This problem is typically attributed to electronic noise and plasma expansion, which heat the plasma. The present work reports anomalous heating far beyond what can be attributed to those two sources. The heating seems to be a result of the axially open trap geometry, which couples the plasma to the external (300 K) environment via microwave radiation.
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7
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Diehl S, Kim A, Angelini G, Joo K, Adhikari S, Amaryan M, Arratia M, Atac H, Avakian H, Ayerbe Gayoso C, Baltzell NA, Barion L, Bastami S, Battaglieri M, Bedlinskiy I, Benmokhtar F, Bianconi A, Biselli AS, Bondi M, Bossù F, Boiarinov S, Brinkmann KT, Briscoe WJ, Brooks W, Bulumulla D, Burkert VD, Carman DS, Carvajal JC, Celentano A, Chatagnon P, Chetry T, Ciullo G, Clark L, Clary BA, Cole PL, Contalbrigo M, Costantini G, Crede V, D'Angelo A, Dashyan N, De Vita R, Defurne M, Deur A, Dilks C, Djalali C, Dugger M, Dupre R, Egiyan H, Ehrhart M, El Alaoui A, El Fassi L, Elouadrhiri L, Fegan S, Filippi A, Forest T, Gavalian G, Gilfoyle GP, Girod FX, Glazier DI, Golubenko AA, Gothe RW, Gotra Y, Griffioen KA, Guidal M, Hafidi K, Hakobyan H, Hattawy M, Hauenstein F, Hayward TB, Heddle D, Hicks K, Hobart A, Holtrop M, Hyde CE, Ireland DG, Isupov EL, Jo HS, Johnston R, Joosten S, Keller D, Khachatryan M, Khanal A, Kim W, Kripko A, Kubarovsky V, Kuhn SE, Lanza L, Leali M, Lee S, Lenisa P, Livingston K, Lu Z, MacGregor IJD, Marchand D, Markov N, Marsicano L, Mascagna V, McKinnon B, Meziani ZE, Milner RG, Mineeva T, Mirazita M, Mokeev V, Moran P, Movsisyan A, Munoz Camacho C, Nadel-Turonski P, Naidoo P, Nanda S, Neupane K, Niccolai S, Niculescu G, O'Connell TR, Osipenko M, Paolone M, Pappalardo LL, Paremuzyan R, Pasyuk E, Phelps W, Pogorelko O, Prok Y, Prokudin A, Raue BA, Ripani M, Ritman J, Rizzo A, Roberts CD, Rossi P, Rowley J, Sabatié F, Salgado C, Schmidt A, Segarra EP, Sharabian YG, Shrestha U, Simmerling P, Sokhan D, Soto O, Sparveris N, Stepanyan S, Stoler P, Strakovsky II, Strauch S, Tezgin K, Thornton A, Tyler N, Tyson R, Ungaro M, Venturelli L, Voskanyan H, Vossen A, Voutier E, Watts DP, Wei K, Wei X, Xu SS, Yale B, Zachariou N, Zhang J. Multidimensional, High Precision Measurements of Beam Single Spin Asymmetries in Semi-inclusive π^{+} Electroproduction off Protons in the Valence Region. Phys Rev Lett 2022; 128:062005. [PMID: 35213183 DOI: 10.1103/physrevlett.128.062005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2021] [Revised: 09/28/2021] [Accepted: 01/21/2022] [Indexed: 06/14/2023]
Abstract
High precision measurements of the polarized electron beam-spin asymmetry in semi-inclusive deep inelastic scattering (SIDIS) from the proton have been performed using a 10.6 GeV incident electron beam and the CLAS12 spectrometer at Jefferson Lab. We report here a high precision multidimensional study of single π^{+} SIDIS data over a large kinematic range in Bjorken x, fractional energy, and transverse momentum of the hadron as well as photon virtualities Q^{2} ranging from 1-7 GeV^{2}. In particular, the structure function ratio F_{LU}^{sinϕ}/F_{UU} has been determined, where F_{LU}^{sinϕ} is a twist-3 quantity that can reveal novel aspects of emergent hadron mass and quark-gluon correlations within the nucleon. The data's impact on the evolving understanding of the underlying reaction mechanisms and their kinematic variation is explored using theoretical models for the different contributing transverse momentum dependent parton distribution functions.
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Affiliation(s)
- S Diehl
- University of Connecticut, Storrs, Connecticut 06269, USA
- II. Physikalisches Institut der Universität Gießen, 35392 Gießen, Germany
| | - A Kim
- University of Connecticut, Storrs, Connecticut 06269, USA
| | - G Angelini
- The George Washington University, Washington, D.C. 20052, USA
| | - K Joo
- University of Connecticut, Storrs, Connecticut 06269, USA
| | - S Adhikari
- Florida International University, Miami, Florida 33199, USA
| | - M Amaryan
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - M Arratia
- University of California, Riverside, California 92521, USA
| | - H Atac
- Temple University, Philadelphia, Pennsylvania 19122, USA
| | - H Avakian
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - C Ayerbe Gayoso
- College of William and Mary, Williamsburg, Virginia 23187-8795, USA
| | - N A Baltzell
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - L Barion
- INFN, Sezione di Ferrara, 44100 Ferrara, Italy
| | - S Bastami
- University of Connecticut, Storrs, Connecticut 06269, USA
| | - M Battaglieri
- INFN, Sezione di Genova, 16146 Genova, Italy
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - I Bedlinskiy
- National Research Centre Kurchatov Institute-ITEP, Moscow, 117259, Russia
| | - F Benmokhtar
- Duquesne University, 600 Forbes Avenue, Pittsburgh, Pennsylvania 15282, USA
| | - A Bianconi
- INFN, Sezione di Pavia, 27100 Pavia, Italy
- Università degli Studi di Brescia, 25123 Brescia, Italy
| | - A S Biselli
- Fairfield University, Fairfield, Connecticut 06824, USA
| | - M Bondi
- INFN, Sezione di Genova, 16146 Genova, Italy
| | - F Bossù
- IRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
| | - S Boiarinov
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - K-T Brinkmann
- II. Physikalisches Institut der Universität Gießen, 35392 Gießen, Germany
| | - W J Briscoe
- The George Washington University, Washington, D.C. 20052, USA
| | - W Brooks
- Universidad Técnica Federico Santa María, Casilla 110-V Valparaíso, Chile
| | - D Bulumulla
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - V D Burkert
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - D S Carman
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - J C Carvajal
- Florida International University, Miami, Florida 33199, USA
| | - A Celentano
- INFN, Sezione di Genova, 16146 Genova, Italy
| | - P Chatagnon
- Université Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France
| | - T Chetry
- Mississippi State University, Mississippi State, Mississippi 39762-5167, USA
- Ohio University, Athens, Ohio 45701, USA
| | - G Ciullo
- Universitá di Ferrara, 44121 Ferrara, Italy
- INFN, Sezione di Ferrara, 44100 Ferrara, Italy
| | - L Clark
- University of Glasgow, Glasgow G12 8QQ, United Kingdom
| | - B A Clary
- University of Connecticut, Storrs, Connecticut 06269, USA
| | - P L Cole
- Lamar University, 4400 MLK Blvd, P.O. Box 10046, Beaumont, Texas 77710, USA
| | | | - G Costantini
- INFN, Sezione di Pavia, 27100 Pavia, Italy
- Università degli Studi di Brescia, 25123 Brescia, Italy
| | - V Crede
- Florida State University, Tallahassee, Florida 32306, USA
| | - A D'Angelo
- INFN, Sezione di Roma Tor Vergata, 00133 Rome, Italy
- Università di Roma Tor Vergata, 00133 Rome Italy
| | - N Dashyan
- Yerevan Physics Institute, 375036 Yerevan, Armenia
| | - R De Vita
- INFN, Sezione di Genova, 16146 Genova, Italy
| | - M Defurne
- IRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
| | - A Deur
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - C Dilks
- Duke University, Durham, North Carolina 27708-0305, USA
| | - C Djalali
- Ohio University, Athens, Ohio 45701, USA
| | - M Dugger
- Arizona State University, Tempe, Arizona 85281, USA
| | - R Dupre
- Université Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France
| | - H Egiyan
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - M Ehrhart
- Argonne National Laboratory, Argonne, Illinois 60439, USA
- Université Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France
| | - A El Alaoui
- Universidad Técnica Federico Santa María, Casilla 110-V Valparaíso, Chile
| | - L El Fassi
- Mississippi State University, Mississippi State, Mississippi 39762-5167, USA
| | - L Elouadrhiri
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - S Fegan
- University of York, York YO10 5DD, United Kingdom
| | - A Filippi
- INFN, Sezione di Torino, 10125 Torino, Italy
| | - T Forest
- Idaho State University, Pocatello, Idaho 83209, USA
| | - G Gavalian
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - G P Gilfoyle
- University of Richmond, Richmond, Virginia 23173, USA
| | - F X Girod
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - D I Glazier
- University of Glasgow, Glasgow G12 8QQ, United Kingdom
| | - A A Golubenko
- Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University, 119234 Moscow, Russia
| | - R W Gothe
- University of South Carolina, Columbia, South Carolina 29208, USA
| | - Y Gotra
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - K A Griffioen
- College of William and Mary, Williamsburg, Virginia 23187-8795, USA
| | - M Guidal
- Université Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France
| | - K Hafidi
- Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - H Hakobyan
- Universidad Técnica Federico Santa María, Casilla 110-V Valparaíso, Chile
- Yerevan Physics Institute, 375036 Yerevan, Armenia
| | - M Hattawy
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - F Hauenstein
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139-4307, USA
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - T B Hayward
- College of William and Mary, Williamsburg, Virginia 23187-8795, USA
| | - D Heddle
- Christopher Newport University, Newport News, Virginia 23606, USA
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - K Hicks
- Ohio University, Athens, Ohio 45701, USA
| | - A Hobart
- Université Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France
| | - M Holtrop
- University of New Hampshire, Durham, New Hampshire 03824-3568, USA
| | - C E Hyde
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - D G Ireland
- University of Glasgow, Glasgow G12 8QQ, United Kingdom
| | - E L Isupov
- Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University, 119234 Moscow, Russia
| | - H S Jo
- Kyungpook National University, Daegu 41566, Republic of Korea
| | - R Johnston
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139-4307, USA
| | - S Joosten
- Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - D Keller
- University of Virginia, Charlottesville, Virginia 22901, USA
| | - M Khachatryan
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - A Khanal
- Florida International University, Miami, Florida 33199, USA
| | - W Kim
- Kyungpook National University, Daegu 41566, Republic of Korea
| | - A Kripko
- II. Physikalisches Institut der Universität Gießen, 35392 Gießen, Germany
| | - V Kubarovsky
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - S E Kuhn
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - L Lanza
- INFN, Sezione di Roma Tor Vergata, 00133 Rome, Italy
| | - M Leali
- INFN, Sezione di Pavia, 27100 Pavia, Italy
- Università degli Studi di Brescia, 25123 Brescia, Italy
| | - S Lee
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139-4307, USA
| | - P Lenisa
- Universitá di Ferrara, 44121 Ferrara, Italy
- INFN, Sezione di Ferrara, 44100 Ferrara, Italy
| | - K Livingston
- University of Glasgow, Glasgow G12 8QQ, United Kingdom
| | - Z Lu
- School of Physics, Southeast University, Nanjing 211189, Jiangsu, China
| | | | - D Marchand
- Université Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France
| | - N Markov
- University of Connecticut, Storrs, Connecticut 06269, USA
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - L Marsicano
- INFN, Sezione di Genova, 16146 Genova, Italy
| | - V Mascagna
- INFN, Sezione di Pavia, 27100 Pavia, Italy
- Università degli Studi dell'Insubria, 22100 Como, Italy
| | - B McKinnon
- University of Glasgow, Glasgow G12 8QQ, United Kingdom
| | - Z E Meziani
- Argonne National Laboratory, Argonne, Illinois 60439, USA
- Temple University, Philadelphia, Pennsylvania 19122, USA
| | - R G Milner
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139-4307, USA
| | - T Mineeva
- Universidad Técnica Federico Santa María, Casilla 110-V Valparaíso, Chile
| | - M Mirazita
- INFN, Laboratori Nazionali di Frascati, 00044 Frascati, Italy
| | - V Mokeev
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - P Moran
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139-4307, USA
| | - A Movsisyan
- INFN, Sezione di Ferrara, 44100 Ferrara, Italy
| | - C Munoz Camacho
- Université Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France
| | - P Nadel-Turonski
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - P Naidoo
- University of Glasgow, Glasgow G12 8QQ, United Kingdom
| | - S Nanda
- Mississippi State University, Mississippi State, Mississippi 39762-5167, USA
| | - K Neupane
- University of South Carolina, Columbia, South Carolina 29208, USA
| | - S Niccolai
- Université Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France
| | - G Niculescu
- James Madison University, Harrisonburg, Virginia 22807, USA
| | - T R O'Connell
- University of Connecticut, Storrs, Connecticut 06269, USA
| | - M Osipenko
- INFN, Sezione di Genova, 16146 Genova, Italy
| | - M Paolone
- New Mexico State University, P.O. Box 30001, Las Cruces, New Mexico 88003, USA
- Temple University, Philadelphia, Pennsylvania 19122, USA
| | - L L Pappalardo
- Universitá di Ferrara, 44121 Ferrara, Italy
- INFN, Sezione di Ferrara, 44100 Ferrara, Italy
| | - R Paremuzyan
- University of New Hampshire, Durham, New Hampshire 03824-3568, USA
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - E Pasyuk
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - W Phelps
- Christopher Newport University, Newport News, Virginia 23606, USA
| | - O Pogorelko
- National Research Centre Kurchatov Institute-ITEP, Moscow, 117259, Russia
| | - Y Prok
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - A Prokudin
- Science Division, Penn State University Berks, Reading, Pennsylvania 19610, USA
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - B A Raue
- Florida International University, Miami, Florida 33199, USA
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - M Ripani
- INFN, Sezione di Genova, 16146 Genova, Italy
| | - J Ritman
- Institute fur Kernphysik (Juelich), Juelich, Germany
| | - A Rizzo
- INFN, Sezione di Roma Tor Vergata, 00133 Rome, Italy
- Università di Roma Tor Vergata, 00133 Rome Italy
| | - C D Roberts
- School of Physics and Institute for Nonperturbative Physics, Nanjing University, Nanjing 210093, Jiangsu, China
| | - P Rossi
- INFN, Laboratori Nazionali di Frascati, 00044 Frascati, Italy
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - J Rowley
- Ohio University, Athens, Ohio 45701, USA
| | - F Sabatié
- IRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
| | - C Salgado
- Norfolk State University, Norfolk, Virginia 23504, USA
| | - A Schmidt
- The George Washington University, Washington, D.C. 20052, USA
| | - E P Segarra
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139-4307, USA
| | - Y G Sharabian
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - U Shrestha
- Ohio University, Athens, Ohio 45701, USA
| | - P Simmerling
- University of Connecticut, Storrs, Connecticut 06269, USA
| | - D Sokhan
- University of Glasgow, Glasgow G12 8QQ, United Kingdom
| | - O Soto
- INFN, Laboratori Nazionali di Frascati, 00044 Frascati, Italy
- Universidad Técnica Federico Santa María, Casilla 110-V Valparaíso, Chile
| | - N Sparveris
- Temple University, Philadelphia, Pennsylvania 19122, USA
| | - S Stepanyan
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - P Stoler
- Rensselaer Polytechnic Institute, Troy, New York 12180-3590, USA
| | - I I Strakovsky
- The George Washington University, Washington, D.C. 20052, USA
| | - S Strauch
- University of South Carolina, Columbia, South Carolina 29208, USA
| | - K Tezgin
- University of Connecticut, Storrs, Connecticut 06269, USA
| | - A Thornton
- University of Glasgow, Glasgow G12 8QQ, United Kingdom
| | - N Tyler
- University of South Carolina, Columbia, South Carolina 29208, USA
| | - R Tyson
- University of Glasgow, Glasgow G12 8QQ, United Kingdom
| | - M Ungaro
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - L Venturelli
- INFN, Sezione di Pavia, 27100 Pavia, Italy
- Università degli Studi di Brescia, 25123 Brescia, Italy
| | - H Voskanyan
- Yerevan Physics Institute, 375036 Yerevan, Armenia
| | - A Vossen
- Duke University, Durham, North Carolina 27708-0305, USA
| | - E Voutier
- Université Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France
| | - D P Watts
- University of York, York YO10 5DD, United Kingdom
| | - K Wei
- University of Connecticut, Storrs, Connecticut 06269, USA
| | - X Wei
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - S-S Xu
- School of Science, Nanjing University of Posts and Telecommunications, Nanjing 210023, Jiangsu, China
| | - B Yale
- College of William and Mary, Williamsburg, Virginia 23187-8795, USA
| | - N Zachariou
- University of York, York YO10 5DD, United Kingdom
| | - J Zhang
- University of Virginia, Charlottesville, Virginia 22901, USA
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8
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Villalba M, Venturelli L, Arnal L, Masson C, Dietler G, Vela ME, Yantorno O, Kasas S. Effect of antibiotics on mechanical properties of Bordetella pertussis examined by atomic force microscopy. Micron 2022; 155:103229. [DOI: 10.1016/j.micron.2022.103229] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 12/12/2021] [Accepted: 01/24/2022] [Indexed: 11/28/2022]
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9
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Rowley J, Compton N, Djalali C, Hicks K, Price J, Zachariou N, Adhikari KP, Armstrong WR, Atac H, Baashen L, Barion L, Bashkanov M, Battaglieri M, Bedlinskiy I, Benmokhtar F, Bianconi A, Biondo L, Biselli AS, Bondi M, Bossù F, Boiarinov S, Briscoe WJ, Brooks WK, Bulumulla D, Burkert VD, Carman DS, Carvajal JC, Celentano A, Chatagnon P, Chesnokov V, Chetry T, Ciullo G, Clark L, Cole PL, Contalbrigo M, Costantini G, Crede V, D'Angelo A, Dashyan N, De Vita R, Defurne M, Deur A, Diehl S, Dupré R, Egiyan H, Ehrhart M, El Alaoui A, El Fassi L, Eugenio P, Fedotov G, Fegan S, Fersch R, Filippi A, Fradi A, Gavalian G, Girod FX, Glazier DI, Golubenko A, Gothe RW, Griffioen K, Guo L, Hafidi K, Hakobyan H, Hattawy M, Hayward TB, Heddle D, Hobart A, Holtrop M, Ilieva Y, Ireland DG, Isupov EL, Jenkins D, Jo HS, Joo K, Keller D, Khanal A, Khandaker M, Kim A, Korover I, Kripko A, Kubarovsky V, Kuhn SE, Lanza L, Leali M, Lenisa P, Livingston K, MacGregor IJD, Marchand D, Markov N, Marsicano L, Mascagna V, McCracken ME, McKinnon B, McLauchlin C, Meziani ZE, Migliorati S, Mineeva T, Mirazita M, Mokeev V, Munevar E, Munoz Camacho C, Nadel-Turonski P, Neupane K, Niccolai S, Niculescu G, O'Connell TR, Osipenko M, Ostrovidov AI, Pandey P, Paolone M, Pappalardo LL, Pasyuk E, Pogorelko O, Prok Y, Reed T, Ripani M, Ritman J, Rizzo A, Rosner G, Sabatie F, Salgado C, Schmidt A, Schumacher RA, Sharabian YG, Shrestha U, Sokhan D, Soto O, Sparveris N, Strakovsky II, Strauch S, Tyson R, Ungaro M, Venturelli L, Voskanyan H, Vossen A, Voutier E, Watts DP, Wei K, Wei X, Wishart R, Wood MH, Yale B, Yurov M, Zhang J, Zhao ZW. Improved Λp Elastic Scattering Cross Sections between 0.9 and 2.0 GeV/c as a Main Ingredient of the Neutron Star Equation of State. Phys Rev Lett 2021; 127:272303. [PMID: 35061432 DOI: 10.1103/physrevlett.127.272303] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Revised: 08/18/2021] [Accepted: 12/07/2021] [Indexed: 06/14/2023]
Abstract
Strange matter is believed to exist in the cores of neutron stars based on simple kinematics. If this is true, then hyperon-nucleon interactions will play a significant part in the neutron star equation of state. Yet, compared to other elastic scattering processes, there is very little data on Λ-N scattering. This experiment utilized the CEBAF Large Acceptance Spectrometer (CLAS) detector to study the Λp→Λp elastic scattering cross section in the incident Λ momentum range 0.9-2.0 GeV/c. These are the first data on this reaction since the 1970s. The new cross sections have significantly better accuracy and precision than the existing world data, and the techniques developed here can also be used in future experiments.
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Affiliation(s)
- J Rowley
- Ohio University, Athens, Ohio 45701, USA
| | - N Compton
- Ohio University, Athens, Ohio 45701, USA
| | - C Djalali
- Ohio University, Athens, Ohio 45701, USA
| | - K Hicks
- Ohio University, Athens, Ohio 45701, USA
| | - J Price
- California State University, Dominguez Hills, Carson, California 90747, USA
| | - N Zachariou
- University of York, York YO10 5DD, United Kingdom
| | - K P Adhikari
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - W R Armstrong
- Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - H Atac
- Temple University, Philadelphia, Pennsylvania 19122, USA
| | - L Baashen
- Florida International University, Miami, Florida 33199, USA
| | - L Barion
- INFN, Sezione di Ferrara, 44100 Ferrara, Italy
| | - M Bashkanov
- University of York, York YO10 5DD, United Kingdom
| | - M Battaglieri
- INFN, Sezione di Genova, 16146 Genova, Italy
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - I Bedlinskiy
- National Research Centre Kurchatov Institute-ITEP, Moscow 117259, Russia
| | - F Benmokhtar
- Duquesne University, 600 Forbes Avenue, Pittsburgh, Pennsylvania 15282, USA
| | - A Bianconi
- INFN, Sezione di Pavia, 27100 Pavia, Italy
- Università degli Studi di Brescia, 25123 Brescia, Italy
| | - L Biondo
- INFN, Sezione di Catania, 95123 Catania, Italy
- INFN, Sezione di Genova, 16146 Genova, Italy
- Universià degli Studi di Messina, 98166 Messina, Italy
| | - A S Biselli
- Fairfield University, Fairfield Connecticut 06824, USA
| | - M Bondi
- INFN, Sezione di Genova, 16146 Genova, Italy
| | - F Bossù
- IRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
| | - S Boiarinov
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - W J Briscoe
- The George Washington University, Washington, D.C. 20052, USA
| | - W K Brooks
- Universidad Técnica Federico Santa María, Casilla 110-V Valparaíso, Chile
| | - D Bulumulla
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - V D Burkert
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - D S Carman
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - J C Carvajal
- Florida International University, Miami, Florida 33199, USA
| | - A Celentano
- INFN, Sezione di Genova, 16146 Genova, Italy
| | - P Chatagnon
- Université Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France
| | - V Chesnokov
- Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University, 119234 Moscow, Russia
| | - T Chetry
- Mississippi State University, Mississippi State, Mississippi 39762-5167, USA
| | - G Ciullo
- Università di Ferrara, 44121 Ferrara, Italy
- INFN, Sezione di Ferrara, 44100 Ferrara, Italy
| | - L Clark
- University of Glasgow, Glasgow G12 8QQ, United Kingdom
| | - P L Cole
- Lamar University, 4400 MLK Boulevard, P.O. Box 10046, Beaumont, Texas 77710, USA
| | | | - G Costantini
- INFN, Sezione di Pavia, 27100 Pavia, Italy
- Università degli Studi di Brescia, 25123 Brescia, Italy
| | - V Crede
- Florida State University, Tallahassee, Florida 32306, USA
| | - A D'Angelo
- INFN, Sezione di Roma Tor Vergata, 00133 Rome, Italy
- Università di Roma Tor Vergata, 00133 Rome, Italy
| | - N Dashyan
- Yerevan Physics Institute, 375036 Yerevan, Armenia
| | - R De Vita
- INFN, Sezione di Genova, 16146 Genova, Italy
| | - M Defurne
- IRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
| | - A Deur
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - S Diehl
- University of Connecticut, Storrs, Connecticut 06269, USA
- II Physikalisches Institut der Universitaet Giessen, 35392 Giessen, Germany
- University of South Carolina, Columbia, South Carolina 29208, USA
| | - R Dupré
- Université Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France
| | - H Egiyan
- University of New Hampshire, Durham, New Hampshire 03824-3568, USA
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - M Ehrhart
- Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - A El Alaoui
- Universidad Técnica Federico Santa María, Casilla 110-V Valparaíso, Chile
| | - L El Fassi
- Argonne National Laboratory, Argonne, Illinois 60439, USA
- Mississippi State University, Mississippi State, Mississippi 39762-5167, USA
| | - P Eugenio
- Florida State University, Tallahassee, Florida 32306, USA
| | - G Fedotov
- Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University, 119234 Moscow, Russia
| | - S Fegan
- University of York, York YO10 5DD, United Kingdom
| | - R Fersch
- Christopher Newport University, Newport News, Virginia 23606, USA
- College of William and Mary, Williamsburg, Virginia 23187-8795, USA
| | - A Filippi
- INFN, Sezione di Torino, 10125 Torino, Italy
| | - A Fradi
- Université Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France
| | - G Gavalian
- Old Dominion University, Norfolk, Virginia 23529, USA
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - F X Girod
- IRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - D I Glazier
- University of Glasgow, Glasgow G12 8QQ, United Kingdom
| | - A Golubenko
- Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University, 119234 Moscow, Russia
| | - R W Gothe
- University of South Carolina, Columbia, South Carolina 29208, USA
| | - K Griffioen
- College of William and Mary, Williamsburg, Virginia 23187-8795, USA
| | - L Guo
- Florida International University, Miami, Florida 33199, USA
| | - K Hafidi
- Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - H Hakobyan
- Universidad Técnica Federico Santa María, Casilla 110-V Valparaíso, Chile
- Yerevan Physics Institute, 375036 Yerevan, Armenia
| | - M Hattawy
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - T B Hayward
- University of Connecticut, Storrs, Connecticut 06269, USA
| | - D Heddle
- Christopher Newport University, Newport News, Virginia 23606, USA
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - A Hobart
- Université Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France
| | - M Holtrop
- University of New Hampshire, Durham, New Hampshire 03824-3568, USA
| | - Y Ilieva
- University of South Carolina, Columbia, South Carolina 29208, USA
| | - D G Ireland
- University of Glasgow, Glasgow G12 8QQ, United Kingdom
| | - E L Isupov
- Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University, 119234 Moscow, Russia
| | - D Jenkins
- Virginia Tech, Blacksburg, Virginia 24061-0435, USA
| | - H S Jo
- Kyungpook National University, Daegu 41566, Republic of Korea
| | - K Joo
- University of Connecticut, Storrs, Connecticut 06269, USA
| | - D Keller
- Ohio University, Athens, Ohio 45701, USA
- University of Virginia, Charlottesville, Virginia 22901, USA
| | - A Khanal
- Florida International University, Miami, Florida 33199, USA
| | - M Khandaker
- Norfolk State University, Norfolk, Virginia 23504, USA
| | - A Kim
- University of Connecticut, Storrs, Connecticut 06269, USA
| | - I Korover
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - A Kripko
- II Physikalisches Institut der Universitaet Giessen, 35392 Giessen, Germany
| | - V Kubarovsky
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - S E Kuhn
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - L Lanza
- INFN, Sezione di Roma Tor Vergata, 00133 Rome, Italy
| | - M Leali
- INFN, Sezione di Pavia, 27100 Pavia, Italy
- Università degli Studi di Brescia, 25123 Brescia, Italy
| | - P Lenisa
- Università di Ferrara, 44121 Ferrara, Italy
- INFN, Sezione di Ferrara, 44100 Ferrara, Italy
| | - K Livingston
- University of Glasgow, Glasgow G12 8QQ, United Kingdom
| | | | - D Marchand
- Université Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France
| | - N Markov
- University of Connecticut, Storrs, Connecticut 06269, USA
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - L Marsicano
- INFN, Sezione di Genova, 16146 Genova, Italy
| | - V Mascagna
- INFN, Sezione di Pavia, 27100 Pavia, Italy
- Università degli Studi dell'Insubria, 22100 Como, Italy
| | - M E McCracken
- Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA
| | - B McKinnon
- University of Glasgow, Glasgow G12 8QQ, United Kingdom
| | - C McLauchlin
- University of South Carolina, Columbia, South Carolina 29208, USA
| | - Z E Meziani
- Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - S Migliorati
- INFN, Sezione di Pavia, 27100 Pavia, Italy
- Università degli Studi di Brescia, 25123 Brescia, Italy
| | - T Mineeva
- University of Connecticut, Storrs, Connecticut 06269, USA
- Universidad Técnica Federico Santa María, Casilla 110-V Valparaíso, Chile
| | - M Mirazita
- INFN, Laboratori Nazionali di Frascati, 00044 Frascati, Italy
| | - V Mokeev
- Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University, 119234 Moscow, Russia
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - E Munevar
- The George Washington University, Washington, D.C. 20052, USA
| | - C Munoz Camacho
- Université Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France
| | - P Nadel-Turonski
- Catholic University of America, Washington, D.C. 20064, USA
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - K Neupane
- University of South Carolina, Columbia, South Carolina 29208, USA
| | - S Niccolai
- Université Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France
| | - G Niculescu
- James Madison University, Harrisonburg, Virginia 22807, USA
| | - T R O'Connell
- University of Connecticut, Storrs, Connecticut 06269, USA
| | - M Osipenko
- INFN, Sezione di Genova, 16146 Genova, Italy
| | - A I Ostrovidov
- Florida State University, Tallahassee, Florida 32306, USA
| | - P Pandey
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - M Paolone
- New Mexico State University, P.O. Box 30001, Las Cruces, New Mexico 88003, USA
| | - L L Pappalardo
- Università di Ferrara, 44121 Ferrara, Italy
- INFN, Sezione di Ferrara, 44100 Ferrara, Italy
| | - E Pasyuk
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - O Pogorelko
- National Research Centre Kurchatov Institute-ITEP, Moscow 117259, Russia
| | - Y Prok
- Old Dominion University, Norfolk, Virginia 23529, USA
- University of Virginia, Charlottesville, Virginia 22901, USA
| | - T Reed
- Florida International University, Miami, Florida 33199, USA
| | - M Ripani
- INFN, Sezione di Genova, 16146 Genova, Italy
| | - J Ritman
- Institute fur Kernphysik (Juelich), 52425 Juelich, Germany
| | - A Rizzo
- INFN, Sezione di Roma Tor Vergata, 00133 Rome, Italy
- Università di Roma Tor Vergata, 00133 Rome, Italy
| | - G Rosner
- University of Glasgow, Glasgow G12 8QQ, United Kingdom
| | - F Sabatie
- IRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
| | - C Salgado
- Norfolk State University, Norfolk, Virginia 23504, USA
| | - A Schmidt
- The George Washington University, Washington, D.C. 20052, USA
| | - R A Schumacher
- Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA
| | - Y G Sharabian
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - U Shrestha
- University of Connecticut, Storrs, Connecticut 06269, USA
| | - D Sokhan
- University of Glasgow, Glasgow G12 8QQ, United Kingdom
| | - O Soto
- INFN, Laboratori Nazionali di Frascati, 00044 Frascati, Italy
| | - N Sparveris
- Temple University, Philadelphia, Pennsylvania 19122, USA
| | - I I Strakovsky
- The George Washington University, Washington, D.C. 20052, USA
| | - S Strauch
- University of South Carolina, Columbia, South Carolina 29208, USA
| | - R Tyson
- University of Glasgow, Glasgow G12 8QQ, United Kingdom
| | - M Ungaro
- University of Connecticut, Storrs, Connecticut 06269, USA
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - L Venturelli
- INFN, Sezione di Pavia, 27100 Pavia, Italy
- Università degli Studi di Brescia, 25123 Brescia, Italy
| | - H Voskanyan
- Yerevan Physics Institute, 375036 Yerevan, Armenia
| | - A Vossen
- Duke University, Durham, North Carolina 27708-0305, USA
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - E Voutier
- Université Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France
| | - D P Watts
- University of York, York YO10 5DD, United Kingdom
| | - K Wei
- University of Connecticut, Storrs, Connecticut 06269, USA
| | - X Wei
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - R Wishart
- University of Glasgow, Glasgow G12 8QQ, United Kingdom
| | - M H Wood
- Canisius College, Buffalo, New York, USA
- University of South Carolina, Columbia, South Carolina 29208, USA
| | - B Yale
- College of William and Mary, Williamsburg, Virginia 23187-8795, USA
| | - M Yurov
- Kyungpook National University, Daegu 41566, Republic of Korea
| | - J Zhang
- Old Dominion University, Norfolk, Virginia 23529, USA
- University of Virginia, Charlottesville, Virginia 22901, USA
| | - Z W Zhao
- Duke University, Durham, North Carolina 27708-0305, USA
- University of South Carolina, Columbia, South Carolina 29208, USA
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10
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Chatagnon P, Niccolai S, Stepanyan S, Amaryan MJ, Angelini G, Armstrong WR, Atac H, Ayerbe Gayoso C, Baltzell NA, Barion L, Bashkanov M, Battaglieri M, Bedlinskiy I, Benmokhtar F, Bianconi A, Biondo L, Biselli AS, Bondi M, Bossù F, Boiarinov S, Briscoe WJ, Brooks WK, Bulumulla D, Burkert VD, Carman DS, Carvajal JC, Caudron M, Celentano A, Chetry T, Ciullo G, Clark L, Cole PL, Contalbrigo M, Costantini G, Crede V, D'Angelo A, Dashyan N, Defurne M, De Vita R, Deur A, Diehl S, Djalali C, Dupré R, Egiyan H, Ehrhart M, El Alaoui A, El Fassi L, Elouadrhiri L, Fegan S, Fersch R, Filippi A, Gavalian G, Ghandilyan Y, Gilfoyle GP, Girod FX, Glazier DI, Golubenko AA, Gothe RW, Gotra Y, Griffioen KA, Guidal M, Guo L, Hakobyan H, Hattawy M, Hayward TB, Heddle D, Hobart A, Holtrop M, Hyde CE, Ilieva Y, Ireland DG, Isupov EL, Jo HS, Joo K, Kabir ML, Keller D, Khachatryan G, Khanal A, Kim A, Kim W, Kripko A, Kubarovsky V, Kuhn SE, Lanza L, Leali M, Lee S, Lenisa P, Livingston K, MacGregor IJD, Marchand D, Marsicano L, Mascagna V, McKinnon B, McLauchlin C, Migliorati S, Mirazita M, Mokeev V, Montgomery RA, Munoz Camacho C, Nadel-Turonski P, Naidoo P, Neupane K, O'Connell TR, Osipenko M, Ouillon M, Pandey P, Paolone M, Pappalardo LL, Paremuzyan R, Pasyuk E, Phelps W, Pogorelko O, Poudel J, Price JW, Prok Y, Raue BA, Reed T, Ripani M, Rizzo A, Rossi P, Rowley J, Sabatié F, Schmidt A, Segarra EP, Sharabian YG, Shirokov EV, Shrestha U, Sokhan D, Soto O, Sparveris N, Strakovsky II, Strauch S, Tyler N, Tyson R, Ungaro M, Vallarino S, Venturelli L, Voskanyan H, Vossen A, Voutier E, Watts DP, Wei K, Wei X, Wishart R, Yale B, Zachariou N, Zhang J, Zhao ZW. First Measurement of Timelike Compton Scattering. Phys Rev Lett 2021; 127:262501. [PMID: 35029502 DOI: 10.1103/physrevlett.127.262501] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Revised: 10/21/2021] [Accepted: 11/11/2021] [Indexed: 06/14/2023]
Abstract
We present the first measurement of the timelike Compton scattering process, γp→p^{'}γ^{*}(γ^{*}→e^{+}e^{-}), obtained with the CLAS12 detector at Jefferson Lab. The photon beam polarization and the decay lepton angular asymmetries are reported in the range of timelike photon virtualities 2.25<Q^{'2}<9 GeV^{2}, squared momentum transferred 0.1<-t<0.8 GeV^{2}, and average total center-of-mass energy squared s=14.5 GeV^{2}. The photon beam polarization asymmetry, similar to the beam-spin asymmetry in deep virtual Compton scattering, is sensitive to the imaginary part of the Compton form factors and provides a way to test the universality of the generalized parton distributions. The angular asymmetry of the decay leptons accesses the real part of the Compton form factors and thus the D-term in the parametrization of the generalized parton distributions.
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Affiliation(s)
- P Chatagnon
- Université Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France
| | - S Niccolai
- Université Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France
| | - S Stepanyan
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - M J Amaryan
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - G Angelini
- The George Washington University, Washington, D.C. 20052, USA
| | - W R Armstrong
- Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - H Atac
- Temple University, Philadelphia, Pennsylvania 19122, USA
| | - C Ayerbe Gayoso
- College of William and Mary, Williamsburg, Virginia 23187-8795, USA
| | - N A Baltzell
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - L Barion
- INFN, Sezione di Ferrara, 44100 Ferrara, Italy
| | - M Bashkanov
- University of York, York YO10 5DD, United Kingdom
| | - M Battaglieri
- INFN, Sezione di Genova, 16146 Genova, Italy
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - I Bedlinskiy
- National Research Centre Kurchatov Institute-ITEP, Moscow, 117259, Russia
| | - F Benmokhtar
- Duquesne University, 600 Forbes Avenue, Pittsburgh, Pennsylvania 15282, USA
| | - A Bianconi
- INFN, Sezione di Pavia, 27100 Pavia, Italy
- Università degli Studi di Brescia, 25123 Brescia, Italy
| | - L Biondo
- INFN, Sezione di Genova, 16146 Genova, Italy
- INFN, Sezione di Catania, 95123 Catania, Italy
- Universit'a degli Studi di Messina, 98166 Messina, Italy
| | - A S Biselli
- Fairfield University, Fairfield, Connecticut 06824, USA
| | - M Bondi
- INFN, Sezione di Genova, 16146 Genova, Italy
| | - F Bossù
- IRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
| | - S Boiarinov
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - W J Briscoe
- The George Washington University, Washington, D.C. 20052, USA
| | - W K Brooks
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
- Universidad Técnica Federico Santa María, Casilla 110-V Valparaíso, Chile
| | - D Bulumulla
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - V D Burkert
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - D S Carman
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - J C Carvajal
- Florida International University, Miami, Florida 33199, USA
| | - M Caudron
- Université Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France
| | - A Celentano
- INFN, Sezione di Genova, 16146 Genova, Italy
| | - T Chetry
- Mississippi State University, Mississippi State, Mississippi 39762-5167, USA
- Ohio University, Athens, Ohio 45701, USA
| | - G Ciullo
- Universita' di Ferrara, 44121 Ferrara, Italy
- INFN, Sezione di Ferrara, 44100 Ferrara, Italy
| | - L Clark
- University of Glasgow, Glasgow G12 8QQ, United Kingdom
| | - P L Cole
- Lamar University, 4400 M. L. King, Jr. Boulevard, P.O. Box 10046, Beaumont, Texas 77710, USA
| | | | - G Costantini
- INFN, Sezione di Pavia, 27100 Pavia, Italy
- Università degli Studi di Brescia, 25123 Brescia, Italy
| | - V Crede
- Florida State University, Tallahassee, Florida 32306, USA
| | - A D'Angelo
- INFN, Sezione di Roma Tor Vergata, 00133 Rome, Italy
- Universita' di Roma Tor Vergata, 00133 Rome, Italy
| | - N Dashyan
- Yerevan Physics Institute, 375036 Yerevan, Armenia
| | - M Defurne
- IRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
| | - R De Vita
- INFN, Sezione di Genova, 16146 Genova, Italy
| | - A Deur
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - S Diehl
- University of Connecticut, Storrs, Connecticut 06269, USA
- II Physikalisches Institut der Universitaet Giessen, 35392 Giessen, Germany
| | - C Djalali
- Ohio University, Athens, Ohio 45701, USA
| | - R Dupré
- Université Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France
| | - H Egiyan
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - M Ehrhart
- Université Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France
| | - A El Alaoui
- Universidad Técnica Federico Santa María, Casilla 110-V Valparaíso, Chile
| | - L El Fassi
- Mississippi State University, Mississippi State, Mississippi 39762-5167, USA
| | - L Elouadrhiri
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - S Fegan
- University of York, York YO10 5DD, United Kingdom
| | - R Fersch
- Christopher Newport University, Newport News, Virginia 23606, USA
| | - A Filippi
- INFN, Sezione di Torino, 10125 Torino, Italy
| | - G Gavalian
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - Y Ghandilyan
- Yerevan Physics Institute, 375036 Yerevan, Armenia
| | - G P Gilfoyle
- University of Richmond, Richmond, Virginia 23173, USA
| | - F X Girod
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - D I Glazier
- University of Glasgow, Glasgow G12 8QQ, United Kingdom
| | - A A Golubenko
- Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University, 119234 Moscow, Russia
| | - R W Gothe
- University of South Carolina, Columbia, South Carolina 29208, USA
| | - Y Gotra
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - K A Griffioen
- College of William and Mary, Williamsburg, Virginia 23187-8795, USA
| | - M Guidal
- Université Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France
| | - L Guo
- Florida International University, Miami, Florida 33199, USA
| | - H Hakobyan
- Universidad Técnica Federico Santa María, Casilla 110-V Valparaíso, Chile
- Yerevan Physics Institute, 375036 Yerevan, Armenia
| | - M Hattawy
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - T B Hayward
- University of Connecticut, Storrs, Connecticut 06269, USA
- College of William and Mary, Williamsburg, Virginia 23187-8795, USA
| | - D Heddle
- Christopher Newport University, Newport News, Virginia 23606, USA
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - A Hobart
- Université Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France
| | - M Holtrop
- University of New Hampshire, Durham, New Hampshire 03824-3568, USA
| | - C E Hyde
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - Y Ilieva
- University of South Carolina, Columbia, South Carolina 29208, USA
| | - D G Ireland
- University of Glasgow, Glasgow G12 8QQ, United Kingdom
| | - E L Isupov
- Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University, 119234 Moscow, Russia
| | - H S Jo
- Kyungpook National University, Daegu 41566, Republic of Korea
| | - K Joo
- University of Connecticut, Storrs, Connecticut 06269, USA
| | - M L Kabir
- Mississippi State University, Mississippi State, Mississippi 39762-5167, USA
| | - D Keller
- University of Virginia, Charlottesville, Virginia 22901, USA
| | | | - A Khanal
- Florida International University, Miami, Florida 33199, USA
| | - A Kim
- University of Connecticut, Storrs, Connecticut 06269, USA
| | - W Kim
- Kyungpook National University, Daegu 41566, Republic of Korea
| | - A Kripko
- II Physikalisches Institut der Universitaet Giessen, 35392 Giessen, Germany
| | - V Kubarovsky
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - S E Kuhn
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - L Lanza
- INFN, Sezione di Roma Tor Vergata, 00133 Rome, Italy
| | - M Leali
- INFN, Sezione di Pavia, 27100 Pavia, Italy
- Università degli Studi di Brescia, 25123 Brescia, Italy
| | - S Lee
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139-4307, USA
| | - P Lenisa
- Universita' di Ferrara, 44121 Ferrara, Italy
- INFN, Sezione di Ferrara, 44100 Ferrara, Italy
| | - K Livingston
- University of Glasgow, Glasgow G12 8QQ, United Kingdom
| | | | - D Marchand
- Université Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France
| | - L Marsicano
- INFN, Sezione di Genova, 16146 Genova, Italy
| | - V Mascagna
- INFN, Sezione di Pavia, 27100 Pavia, Italy
- Università degli Studi dell'Insubria, 22100 Como, Italy
| | - B McKinnon
- University of Glasgow, Glasgow G12 8QQ, United Kingdom
| | - C McLauchlin
- University of South Carolina, Columbia, South Carolina 29208, USA
| | - S Migliorati
- INFN, Sezione di Pavia, 27100 Pavia, Italy
- Università degli Studi di Brescia, 25123 Brescia, Italy
| | - M Mirazita
- INFN, Laboratori Nazionali di Frascati, 00044 Frascati, Italy
| | - V Mokeev
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | | | - C Munoz Camacho
- Université Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France
| | - P Nadel-Turonski
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - P Naidoo
- University of Glasgow, Glasgow G12 8QQ, United Kingdom
| | - K Neupane
- University of South Carolina, Columbia, South Carolina 29208, USA
| | - T R O'Connell
- University of Connecticut, Storrs, Connecticut 06269, USA
| | - M Osipenko
- INFN, Sezione di Genova, 16146 Genova, Italy
| | - M Ouillon
- Université Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France
| | - P Pandey
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - M Paolone
- New Mexico State University, P.O. Box 30001, Las Cruces, New Mexico 88003, USA
- Temple University, Philadelphia, Pennsylvania 19122, USA
| | - L L Pappalardo
- Universita' di Ferrara, 44121 Ferrara, Italy
- INFN, Sezione di Ferrara, 44100 Ferrara, Italy
| | - R Paremuzyan
- University of New Hampshire, Durham, New Hampshire 03824-3568, USA
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - E Pasyuk
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - W Phelps
- Christopher Newport University, Newport News, Virginia 23606, USA
- The George Washington University, Washington, D.C. 20052, USA
| | - O Pogorelko
- National Research Centre Kurchatov Institute-ITEP, Moscow, 117259, Russia
| | - J Poudel
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - J W Price
- California State University, Dominguez Hills, Carson, California 90747, USA
| | - Y Prok
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - B A Raue
- Florida International University, Miami, Florida 33199, USA
| | - T Reed
- Florida International University, Miami, Florida 33199, USA
| | - M Ripani
- INFN, Sezione di Genova, 16146 Genova, Italy
| | - A Rizzo
- INFN, Sezione di Roma Tor Vergata, 00133 Rome, Italy
- Universita' di Roma Tor Vergata, 00133 Rome, Italy
| | - P Rossi
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - J Rowley
- Ohio University, Athens, Ohio 45701, USA
| | - F Sabatié
- IRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
| | - A Schmidt
- The George Washington University, Washington, D.C. 20052, USA
| | - E P Segarra
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139-4307, USA
| | - Y G Sharabian
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - E V Shirokov
- Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University, 119234 Moscow, Russia
| | - U Shrestha
- University of Connecticut, Storrs, Connecticut 06269, USA
- Ohio University, Athens, Ohio 45701, USA
| | - D Sokhan
- IRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
- University of Glasgow, Glasgow G12 8QQ, United Kingdom
| | - O Soto
- INFN, Laboratori Nazionali di Frascati, 00044 Frascati, Italy
- Universidad Técnica Federico Santa María, Casilla 110-V Valparaíso, Chile
| | - N Sparveris
- Temple University, Philadelphia, Pennsylvania 19122, USA
| | - I I Strakovsky
- The George Washington University, Washington, D.C. 20052, USA
| | - S Strauch
- University of South Carolina, Columbia, South Carolina 29208, USA
| | - N Tyler
- University of South Carolina, Columbia, South Carolina 29208, USA
| | - R Tyson
- University of Glasgow, Glasgow G12 8QQ, United Kingdom
| | - M Ungaro
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - S Vallarino
- INFN, Sezione di Ferrara, 44100 Ferrara, Italy
| | - L Venturelli
- INFN, Sezione di Pavia, 27100 Pavia, Italy
- Università degli Studi di Brescia, 25123 Brescia, Italy
| | - H Voskanyan
- Yerevan Physics Institute, 375036 Yerevan, Armenia
| | - A Vossen
- Duke University, Durham, North Carolina 27708-0305, USA
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - E Voutier
- Université Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France
| | - D P Watts
- University of York, York YO10 5DD, United Kingdom
| | - K Wei
- University of Connecticut, Storrs, Connecticut 06269, USA
| | - X Wei
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - R Wishart
- University of Glasgow, Glasgow G12 8QQ, United Kingdom
| | - B Yale
- College of William and Mary, Williamsburg, Virginia 23187-8795, USA
| | - N Zachariou
- University of York, York YO10 5DD, United Kingdom
| | - J Zhang
- University of Virginia, Charlottesville, Virginia 22901, USA
| | - Z W Zhao
- Duke University, Durham, North Carolina 27708-0305, USA
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11
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Hayward TB, Dilks C, Vossen A, Avakian H, Adhikari S, Angelini G, Arratia M, Atac H, Ayerbe Gayoso C, Baltzell NA, Barion L, Battaglieri M, Bedlinskiy I, Benmokhtar F, Bianconi A, Biselli AS, Bondì M, Bossù F, Boiarinov S, Briscoe WJ, Brooks WK, Bulumulla D, Burkert VD, Carman DS, Carvajal JC, Celentano A, Chatagnon P, Chetry T, Ciullo G, Clary BA, Cole PL, Contalbrigo M, Costantini G, Crede V, D'Angelo A, Dashyan N, De Vita R, Defurne M, Deur A, Diehl S, Djalali C, Dupre R, Dugger M, Egiyan H, Ehrhart M, El Alaoui A, El Fassi L, Elouadrhiri L, Fegan S, Filippi A, Forest TA, Gavalian G, Gilfoyle GP, Girod FX, Glazier DI, Golubenko AA, Gothe RW, Gotra Y, Griffioen KA, Guidal M, Hafidi K, Hakobyan H, Hattawy M, Hauenstein F, Hicks K, Hobart A, Holtrop M, Ireland DG, Isupov EL, Jo HS, Joo K, Joosten S, Keller D, Khachatryan M, Khanal A, Kim A, Kim W, Kripko A, Kubarovsky V, Kuhn SE, Lanza L, Leali M, Lee S, Lenisa P, Livingston K, MacGregor IJD, Marchand D, Markov N, Marsicano L, Mascagna V, McKinnon B, Meziani ZE, Mirazita M, Mokeev V, Movsisyan A, Munoz Camacho C, Nadel-Turonski P, Naidoo P, Nanda S, Neupane K, Niccolai S, Niculescu G, O'Connell TR, Osipenko M, Paolone M, Pappalardo LL, Paremuzyan R, Pasyuk E, Phelps W, Pogorelko O, Prok Y, Raue BA, Ripani M, Ritman J, Rizzo A, Rossi P, Rowley J, Sabatié F, Salgado C, Schmidt A, Segarra EP, Sharabian YG, Shrestha U, Sokhan D, Soto O, Sparveris N, Stepanyan S, Strakovsky II, Strauch S, Thornton A, Tyler N, Tyson R, Ungaro M, Venturelli L, Voskanyan H, Voutier E, Watts DP, Wei K, Wei X, Wood MH, Yale B, Zachariou N, Zhang J. Observation of Beam Spin Asymmetries in the Process ep→e^{'}π^{+}π^{-}X with CLAS12. Phys Rev Lett 2021; 126:152501. [PMID: 33929247 DOI: 10.1103/physrevlett.126.152501] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Revised: 02/25/2021] [Accepted: 03/18/2021] [Indexed: 06/12/2023]
Abstract
The observation of beam spin asymmetries in two-pion production in semi-inclusive deep inelastic scattering off an unpolarized proton target is reported. The data presented here were taken in the fall of 2018 with the CLAS12 spectrometer using a 10.6 GeV longitudinally spin-polarized electron beam delivered by CEBAF at JLab. The measured asymmetries provide the first opportunity to extract the parton distribution function e(x), which provides information about the interaction between gluons and quarks, in a collinear framework that offers cleaner access than previous measurements. The asymmetries also constitute the first ever signal sensitive to the helicity-dependent two-pion fragmentation function G_{1}^{⊥}. A clear sign change is observed around the ρ mass that appears in model calculations and is indicative of the dependence of the produced pions on the helicity of the fragmenting quark.
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Affiliation(s)
- T B Hayward
- College of William and Mary, Williamsburg, Virginia 23187-8795, USA
| | - C Dilks
- Duke University, Durham, North Carolina 27708-0305, USA
| | - A Vossen
- Duke University, Durham, North Carolina 27708-0305, USA
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - H Avakian
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - S Adhikari
- Florida International University, Miami, Florida 33199, USA
| | - G Angelini
- The George Washington University, Washington, D.C. 20052, USA
| | - M Arratia
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
- University of California, Riverside, Riverside, California 92521, USA
| | - H Atac
- Temple University, Philadelphia, Pennsylvania 19122, USA
| | - C Ayerbe Gayoso
- College of William and Mary, Williamsburg, Virginia 23187-8795, USA
| | - N A Baltzell
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - L Barion
- INFN, Sezione di Ferrara, 44100 Ferrara, Italy
| | - M Battaglieri
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
- INFN, Sezione di Genova, 16146 Genova, Italy
| | - I Bedlinskiy
- National Research Centre Kurchatov Institute-ITEP, Moscow 117259, Russia
| | - F Benmokhtar
- Duquesne University, 600 Forbes Avenue, Pittsburgh, Pennsylvania 15282, USA
| | - A Bianconi
- Università degli Studi di Brescia, 25123 Brescia, Italy
- INFN, Sezione di Pavia, 27100 Pavia, Italy
| | - A S Biselli
- Fairfield University, Fairfield, Connecticut 06824, USA
| | - M Bondì
- INFN, Sezione di Genova, 16146 Genova, Italy
| | - F Bossù
- IRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
| | - S Boiarinov
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - W J Briscoe
- The George Washington University, Washington, D.C. 20052, USA
| | - W K Brooks
- Universidad Técnica Federico Santa María, Casilla 110-V Valparaíso, Chile
| | - D Bulumulla
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - V D Burkert
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - D S Carman
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - J C Carvajal
- Florida International University, Miami, Florida 33199, USA
| | - A Celentano
- INFN, Sezione di Genova, 16146 Genova, Italy
| | - P Chatagnon
- Université Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France
| | - T Chetry
- Mississippi State University, Mississippi State, Mississippi 39762-5167, USA
- Ohio University, Athens, Ohio 45701, USA
| | - G Ciullo
- INFN, Sezione di Ferrara, 44100 Ferrara, Italy
- Università di Ferrara, 44121 Ferrara, Italy
| | - B A Clary
- University of Connecticut, Storrs, Connecticut 06269, USA
| | - P L Cole
- Lamar University, 4400 MLK Boulevard, P.O. Box 10046, Beaumont, Texas 77710, USA
| | | | - G Costantini
- Università degli Studi di Brescia, 25123 Brescia, Italy
- INFN, Sezione di Pavia, 27100 Pavia, Italy
| | - V Crede
- Florida State University, Tallahassee, Florida 32306, USA
| | - A D'Angelo
- INFN, Sezione di Roma Tor Vergata, 00133 Rome, Italy
- Università di Roma Tor Vergata, 00133 Rome, Italy
| | - N Dashyan
- Yerevan Physics Institute, 375036 Yerevan, Armenia
| | - R De Vita
- INFN, Sezione di Genova, 16146 Genova, Italy
| | - M Defurne
- IRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
| | - A Deur
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - S Diehl
- University of Connecticut, Storrs, Connecticut 06269, USA
- II. Physikalisches Institut der Universität Gießen, 35392 Gießen, Germany
| | - C Djalali
- Ohio University, Athens, Ohio 45701, USA
| | - R Dupre
- Université Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France
| | - M Dugger
- Arizona State University, Tempe, Arizona 85287, USA
| | - H Egiyan
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - M Ehrhart
- Université Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France
- Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - A El Alaoui
- Universidad Técnica Federico Santa María, Casilla 110-V Valparaíso, Chile
| | - L El Fassi
- Mississippi State University, Mississippi State, Mississippi 39762-5167, USA
| | - L Elouadrhiri
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - S Fegan
- University of York, York YO10 5DD, United Kingdom
| | - A Filippi
- INFN, Sezione di Torino, 10125 Torino, Italy
| | - T A Forest
- Idaho State University, Pocatello, Idaho 83209, USA
| | - G Gavalian
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - G P Gilfoyle
- University of Richmond, Richmond, Virginia 23173, USA
| | - F X Girod
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - D I Glazier
- University of Glasgow, Glasgow G12 8QQ, United Kingdom
| | - A A Golubenko
- Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University, 119234 Moscow, Russia
| | - R W Gothe
- University of South Carolina, Columbia, South Carolina 29208, USA
| | - Y Gotra
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - K A Griffioen
- College of William and Mary, Williamsburg, Virginia 23187-8795, USA
| | - M Guidal
- Université Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France
| | - K Hafidi
- Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - H Hakobyan
- Universidad Técnica Federico Santa María, Casilla 110-V Valparaíso, Chile
- Yerevan Physics Institute, 375036 Yerevan, Armenia
| | - M Hattawy
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - F Hauenstein
- Old Dominion University, Norfolk, Virginia 23529, USA
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139-4307, USA
| | - K Hicks
- Ohio University, Athens, Ohio 45701, USA
| | - A Hobart
- Université Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France
| | - M Holtrop
- University of New Hampshire, Durham, New Hampshire 03824-3568, USA
| | - D G Ireland
- University of Glasgow, Glasgow G12 8QQ, United Kingdom
| | - E L Isupov
- Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University, 119234 Moscow, Russia
| | - H S Jo
- Kyungpook National University, Daegu 41566, Republic of Korea
| | - K Joo
- University of Connecticut, Storrs, Connecticut 06269, USA
| | - S Joosten
- Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - D Keller
- University of Virginia, Charlottesville, Virginia 22901, USA
| | - M Khachatryan
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - A Khanal
- Florida International University, Miami, Florida 33199, USA
| | - A Kim
- University of Connecticut, Storrs, Connecticut 06269, USA
| | - W Kim
- Kyungpook National University, Daegu 41566, Republic of Korea
| | - A Kripko
- II. Physikalisches Institut der Universität Gießen, 35392 Gießen, Germany
| | - V Kubarovsky
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - S E Kuhn
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - L Lanza
- INFN, Sezione di Roma Tor Vergata, 00133 Rome, Italy
| | - M Leali
- Università degli Studi di Brescia, 25123 Brescia, Italy
- INFN, Sezione di Pavia, 27100 Pavia, Italy
| | - S Lee
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139-4307, USA
| | - P Lenisa
- INFN, Sezione di Ferrara, 44100 Ferrara, Italy
- Università di Ferrara, 44121 Ferrara, Italy
| | - K Livingston
- University of Glasgow, Glasgow G12 8QQ, United Kingdom
| | | | - D Marchand
- Université Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France
| | - N Markov
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
- University of Connecticut, Storrs, Connecticut 06269, USA
| | - L Marsicano
- INFN, Sezione di Genova, 16146 Genova, Italy
| | - V Mascagna
- INFN, Sezione di Pavia, 27100 Pavia, Italy
- Università degli Studi dell'Insubria, 22100 Como, Italy
| | - B McKinnon
- University of Glasgow, Glasgow G12 8QQ, United Kingdom
| | - Z E Meziani
- Temple University, Philadelphia, Pennsylvania 19122, USA
- Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - M Mirazita
- INFN, Laboratori Nazionali di Frascati, 00044 Frascati, Italy
| | - V Mokeev
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - A Movsisyan
- INFN, Sezione di Ferrara, 44100 Ferrara, Italy
| | - C Munoz Camacho
- Université Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France
| | - P Nadel-Turonski
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - P Naidoo
- University of Glasgow, Glasgow G12 8QQ, United Kingdom
| | - S Nanda
- Mississippi State University, Mississippi State, Mississippi 39762-5167, USA
| | - K Neupane
- University of South Carolina, Columbia, South Carolina 29208, USA
| | - S Niccolai
- Université Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France
| | - G Niculescu
- James Madison University, Harrisonburg, Virginia 22807, USA
| | - T R O'Connell
- University of Connecticut, Storrs, Connecticut 06269, USA
| | - M Osipenko
- INFN, Sezione di Genova, 16146 Genova, Italy
| | - M Paolone
- Temple University, Philadelphia, Pennsylvania 19122, USA
- New Mexico State University, P.O. Box 30001, Las Cruces, New Mexico 88003, USA
| | - L L Pappalardo
- INFN, Sezione di Ferrara, 44100 Ferrara, Italy
- Università di Ferrara, 44121 Ferrara, Italy
| | - R Paremuzyan
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
- University of New Hampshire, Durham, New Hampshire 03824-3568, USA
| | - E Pasyuk
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - W Phelps
- Christopher Newport University, Newport News, Virginia 23606, USA
| | - O Pogorelko
- National Research Centre Kurchatov Institute-ITEP, Moscow 117259, Russia
| | - Y Prok
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - B A Raue
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
- Florida International University, Miami, Florida 33199, USA
| | - M Ripani
- INFN, Sezione di Genova, 16146 Genova, Italy
| | - J Ritman
- Institute fur Kernphysik (Juelich), Juelich 52428, Germany
| | - A Rizzo
- INFN, Sezione di Roma Tor Vergata, 00133 Rome, Italy
- Università di Roma Tor Vergata, 00133 Rome, Italy
| | - P Rossi
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
- INFN, Laboratori Nazionali di Frascati, 00044 Frascati, Italy
| | - J Rowley
- Ohio University, Athens, Ohio 45701, USA
| | - F Sabatié
- IRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
| | - C Salgado
- Norfolk State University, Norfolk, Virginia 23504, USA
| | - A Schmidt
- The George Washington University, Washington, D.C. 20052, USA
| | - E P Segarra
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139-4307, USA
| | - Y G Sharabian
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - U Shrestha
- Ohio University, Athens, Ohio 45701, USA
| | - D Sokhan
- University of Glasgow, Glasgow G12 8QQ, United Kingdom
| | - O Soto
- Universidad Técnica Federico Santa María, Casilla 110-V Valparaíso, Chile
- INFN, Laboratori Nazionali di Frascati, 00044 Frascati, Italy
| | - N Sparveris
- Temple University, Philadelphia, Pennsylvania 19122, USA
| | - S Stepanyan
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - I I Strakovsky
- The George Washington University, Washington, D.C. 20052, USA
| | - S Strauch
- University of South Carolina, Columbia, South Carolina 29208, USA
| | - A Thornton
- University of Glasgow, Glasgow G12 8QQ, United Kingdom
| | - N Tyler
- University of South Carolina, Columbia, South Carolina 29208, USA
| | - R Tyson
- University of Glasgow, Glasgow G12 8QQ, United Kingdom
| | - M Ungaro
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - L Venturelli
- Università degli Studi di Brescia, 25123 Brescia, Italy
- INFN, Sezione di Pavia, 27100 Pavia, Italy
| | - H Voskanyan
- Yerevan Physics Institute, 375036 Yerevan, Armenia
| | - E Voutier
- Université Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France
| | - D P Watts
- University of York, York YO10 5DD, United Kingdom
| | - K Wei
- University of Connecticut, Storrs, Connecticut 06269, USA
| | - X Wei
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - M H Wood
- Canisius College, Buffalo, New York 14208-1098, USA
| | - B Yale
- College of William and Mary, Williamsburg, Virginia 23187-8795, USA
| | - N Zachariou
- University of York, York YO10 5DD, United Kingdom
| | - J Zhang
- University of Virginia, Charlottesville, Virginia 22901, USA
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Carver M, Celentano A, Hicks K, Marsicano L, Mathieu V, Pilloni A, Adhikari KP, Adhikari S, Amaryan MJ, Angelini G, Atac H, Baltzell NA, Barion L, Battaglieri M, Bedlinskiy I, Benmokhtar F, Bianconi A, Biselli AS, Bondi M, Bossù F, Boiarinov S, Briscoe WJ, Brooks WK, Bulumulla D, Burkert VD, Carman DS, Carvajal JC, Chatagnon P, Chetry T, Ciullo G, Clark L, Clary BA, Cole PL, Contalbrigo M, Crede V, D'Angelo A, Dashyan N, De Vita R, Defurne M, Deur A, Diehl S, Djalali C, Dugger M, Dupre R, Egiyan H, Ehrhart M, Alaoui AE, Fassi LE, Eugenio P, Fedotov G, Fegan S, Filippi A, Gavalian G, Gevorgyan N, Gilfoyle GP, Girod FX, Gothe RW, Griffioen KA, Hafidi K, Hakobyan H, Hattawy M, Hayward TB, Heddle D, Holtrop M, Huang Q, Hyde CE, Ilieva Y, Ireland DG, Isupov EL, Jenkins D, Jo HS, Joo K, Joosten S, Keller D, Khanal A, Khandaker M, Kim A, Kim CW, Klein FJ, Kripko A, Kubarovsky V, Lanza L, Leali M, Lenisa P, Livingston K, MacGregor IJD, Marchand D, Mascagna V, McCracken ME, McKinnon B, Meziani ZE, Mokeev V, Movsisyan A, Munevar E, Camacho CM, Nadel-Turonski P, Neupane K, Niccolai S, Niculescu G, Osipenko M, Ostrovidov AI, Paolone M, Pappalardo LL, Paremuzyan R, Pasyuk E, Phelps W, Pogorelko O, Prok Y, Protopopescu D, Ripani M, Ritchie BG, Ritman J, Rizzo A, Rosner G, Rowley J, Sabatié F, Salgado C, Schmidt A, Schumacher RA, Sharabian YG, Shrestha U, Sokhan D, Soto O, Sparveris N, Stepanyan S, Strakovsky II, Strauch S, Tyler N, Tyson R, Ungaro M, Venturelli L, Voskanyan H, Voutier E, Watts DP, Wei K, Wei X, Yale B, Zachariou N, Zhang J, Zhao ZW. Photoproduction of the f_{2}(1270) Meson Using the CLAS Detector. Phys Rev Lett 2021; 126:082002. [PMID: 33709753 DOI: 10.1103/physrevlett.126.082002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2020] [Revised: 01/08/2021] [Accepted: 02/04/2021] [Indexed: 06/12/2023]
Abstract
The quark structure of the f_{2}(1270) meson has, for many years, been assumed to be a pure quark-antiquark (qq[over ¯]) resonance with quantum numbers J^{PC}=2^{++}. Recently, it was proposed that the f_{2}(1270) is a molecular state made from the attractive interaction of two ρ mesons. Such a state would be expected to decay strongly to final states with charged pions due to the dominant decay ρ→π^{+}π^{-}, whereas decay to two neutral pions would likely be suppressed. Here, we measure for the first time the reaction γp→π^{0}π^{0}p, using the CEBAF Large Acceptance Spectrometer detector at Jefferson Lab for incident beam energies between 3.6 and 5.4 GeV. Differential cross sections, dσ/dt, for f_{2}(1270) photoproduction are extracted with good precision due to low backgrounds and are compared to theoretical calculations.
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Affiliation(s)
- M Carver
- Ohio University, Athens, Ohio 45701, USA
| | - A Celentano
- INFN, Sezione di Genova, 16146 Genova, Italy
| | - K Hicks
- Ohio University, Athens, Ohio 45701, USA
| | - L Marsicano
- INFN, Sezione di Genova, 16146 Genova, Italy
| | - V Mathieu
- Departamento de Fsica Terica and IPARCOS, Universidad Complutense de Madrid, 28040 Madrid, Spain
| | - A Pilloni
- INFN, Sezione di Genova, 16146 Genova, Italy
- European Centre for Theoretical Studies in Nuclear Physics and Related Areas (ECT*) and Fondazione Bruno Kessler, Strada delle Tavarnelle 286, Villazzano (Trento) I-38123, Italy
- INFN, Sezione di Roma, 00185 Roma, Italy
| | - K P Adhikari
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - S Adhikari
- Florida International University, Miami, Florida 33199, USA
| | - M J Amaryan
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - G Angelini
- The George Washington University, Washington, D.C. 20052, USA
| | - H Atac
- Temple University, Philadelphia, Pennsylvania 19122, USA
| | - N A Baltzell
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
- University of South Carolina, Columbia, South Carolina 29208, USA
| | - L Barion
- INFN, Sezione di Ferrara, 44100 Ferrara, Italy
| | - M Battaglieri
- INFN, Sezione di Genova, 16146 Genova, Italy
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - I Bedlinskiy
- National Research Centre Kurchatov Institute-ITEP, Moscow, 117259, Russia
| | - F Benmokhtar
- Duquesne University, 600 Forbes Avenue, Pittsburgh, Pennsylvania 15282, USA
| | - A Bianconi
- Università degli Studi di Brescia, 25123 Brescia, Italy
- INFN, Sezione di Pavia, 27100 Pavia, Italy
| | - A S Biselli
- Fairfield University, Fairfield, Connecticut 06824, USA
| | - M Bondi
- INFN, Sezione di Genova, 16146 Genova, Italy
| | - F Bossù
- IRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
| | - S Boiarinov
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - W J Briscoe
- The George Washington University, Washington, D.C. 20052, USA
| | - W K Brooks
- Universidad Técnica Federico Santa María, Casilla 110-V Valparaíso, Chile
| | - D Bulumulla
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - V D Burkert
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - D S Carman
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - J C Carvajal
- Florida International University, Miami, Florida 33199, USA
| | - P Chatagnon
- Universit'e Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France
| | - T Chetry
- Mississippi State University, Mississippi State, Mississippi 39762-5167, USA
| | - G Ciullo
- INFN, Sezione di Ferrara, 44100 Ferrara, Italy
- Universita' di Ferrara, 44121 Ferrara, Italy
| | - L Clark
- University of Glasgow, Glasgow G12 8QQ, United Kingdom
| | - B A Clary
- University of Connecticut, Storrs, Connecticut 06269, USA
| | - P L Cole
- Lamar University, 4400 MLK Boulevard, PO Box 10046, Beaumont, Texas 77710, USA
- Idaho State University, Pocatello, Idaho 83209, USA
| | | | - V Crede
- Florida State University, Tallahassee, Florida 32306 USA
| | - A D'Angelo
- INFN, Sezione di Roma Tor Vergata, 00133 Rome, Italy
- Universita' di Roma Tor Vergata, 00133 Rome, Italy
| | - N Dashyan
- Yerevan Physics Institute, 375036 Yerevan, Armenia
| | - R De Vita
- INFN, Sezione di Genova, 16146 Genova, Italy
| | - M Defurne
- IRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
| | - A Deur
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - S Diehl
- University of Connecticut, Storrs, Connecticut 06269, USA
- II Physikalisches Institut der Universitaet Giessen 35392, Germany
| | - C Djalali
- Ohio University, Athens, Ohio 45701, USA
- University of South Carolina, Columbia, South Carolina 29208, USA
| | - M Dugger
- Arizona State University, Tempe, Arizona 85287-1504, USA
| | - R Dupre
- Universit'e Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France
| | - H Egiyan
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
- University of New Hampshire, Durham, New Hampshire 03824-3568, USA
| | - M Ehrhart
- Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - A El Alaoui
- Universidad Técnica Federico Santa María, Casilla 110-V Valparaíso, Chile
| | - L El Fassi
- Mississippi State University, Mississippi State, Mississippi 39762-5167, USA
- Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - P Eugenio
- Florida State University, Tallahassee, Florida 32306 USA
| | - G Fedotov
- Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University, 119234 Moscow, Russia
| | - S Fegan
- University of York, York YO10 5DD, United Kingdom
| | - A Filippi
- INFN, Sezione di Torino, 10125 Torino, Italy
| | - G Gavalian
- Old Dominion University, Norfolk, Virginia 23529, USA
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - N Gevorgyan
- Yerevan Physics Institute, 375036 Yerevan, Armenia
| | - G P Gilfoyle
- University of Richmond, Richmond, Virginia 23173, USA
| | - F X Girod
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
- IRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
| | - R W Gothe
- University of South Carolina, Columbia, South Carolina 29208, USA
| | - K A Griffioen
- College of William and Mary, Williamsburg, Virginia 23187-8795, USA
| | - K Hafidi
- Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - H Hakobyan
- Universidad Técnica Federico Santa María, Casilla 110-V Valparaíso, Chile
- Yerevan Physics Institute, 375036 Yerevan, Armenia
| | - M Hattawy
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - T B Hayward
- College of William and Mary, Williamsburg, Virginia 23187-8795, USA
| | - D Heddle
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
- Christopher Newport University, Newport News, Virginia 23606, USA
| | - M Holtrop
- University of New Hampshire, Durham, New Hampshire 03824-3568, USA
| | - Q Huang
- IRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
| | - C E Hyde
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - Y Ilieva
- University of South Carolina, Columbia, South Carolina 29208, USA
| | - D G Ireland
- University of Glasgow, Glasgow G12 8QQ, United Kingdom
| | - E L Isupov
- Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University, 119234 Moscow, Russia
| | - D Jenkins
- Virginia Tech, Blacksburg, Virginia 24061-0435, USA
| | - H S Jo
- Kyungpook National University, Daegu 41566, Republic of Korea
| | - K Joo
- University of Connecticut, Storrs, Connecticut 06269, USA
| | - S Joosten
- Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - D Keller
- Ohio University, Athens, Ohio 45701, USA
- University of Virginia, Charlottesville, Virginia 22901j, USA
| | - A Khanal
- Florida International University, Miami, Florida 33199, USA
| | - M Khandaker
- Norfolk State University, Norfolk, Virginia 23504, USA
| | - A Kim
- University of Connecticut, Storrs, Connecticut 06269, USA
| | - C W Kim
- The George Washington University, Washington, D.C. 20052, USA
| | - F J Klein
- Catholic University of America, Washington, D.C. 20064, USA
| | - A Kripko
- II Physikalisches Institut der Universitaet Giessen 35392, Germany
| | - V Kubarovsky
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - L Lanza
- INFN, Sezione di Roma Tor Vergata, 00133 Rome, Italy
| | - M Leali
- Università degli Studi di Brescia, 25123 Brescia, Italy
- INFN, Sezione di Pavia, 27100 Pavia, Italy
| | - P Lenisa
- INFN, Sezione di Ferrara, 44100 Ferrara, Italy
- Universita' di Ferrara, 44121 Ferrara, Italy
| | - K Livingston
- University of Glasgow, Glasgow G12 8QQ, United Kingdom
| | | | - D Marchand
- Universit'e Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France
| | - V Mascagna
- INFN, Sezione di Pavia, 27100 Pavia, Italy
- Università degli Studi dell'Insubria, 22100 Como, Italy
| | - M E McCracken
- Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA
| | - B McKinnon
- University of Glasgow, Glasgow G12 8QQ, United Kingdom
| | - Z E Meziani
- Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - V Mokeev
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
- Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University, 119234 Moscow, Russia
| | - A Movsisyan
- INFN, Sezione di Ferrara, 44100 Ferrara, Italy
| | - E Munevar
- The George Washington University, Washington, D.C. 20052, USA
| | - C Munoz Camacho
- Universit'e Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France
| | - P Nadel-Turonski
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
- Catholic University of America, Washington, D.C. 20064, USA
| | - K Neupane
- University of South Carolina, Columbia, South Carolina 29208, USA
| | - S Niccolai
- Universit'e Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France
| | - G Niculescu
- James Madison University, Harrisonburg, Virginia 22807, USA
| | - M Osipenko
- INFN, Sezione di Genova, 16146 Genova, Italy
| | - A I Ostrovidov
- Florida State University, Tallahassee, Florida 32306 USA
| | - M Paolone
- Temple University, Philadelphia, Pennsylvania 19122, USA
| | - L L Pappalardo
- INFN, Sezione di Ferrara, 44100 Ferrara, Italy
- Universita' di Ferrara, 44121 Ferrara, Italy
| | - R Paremuzyan
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - E Pasyuk
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - W Phelps
- Christopher Newport University, Newport News, Virginia 23606, USA
| | - O Pogorelko
- National Research Centre Kurchatov Institute-ITEP, Moscow, 117259, Russia
| | - Y Prok
- Old Dominion University, Norfolk, Virginia 23529, USA
- University of Virginia, Charlottesville, Virginia 22901j, USA
| | | | - M Ripani
- INFN, Sezione di Genova, 16146 Genova, Italy
| | - B G Ritchie
- Arizona State University, Tempe, Arizona 85287-1504, USA
| | - J Ritman
- Institute fur Kernphysik (Juelich), Juelich, Germany
| | - A Rizzo
- INFN, Sezione di Roma Tor Vergata, 00133 Rome, Italy
- Universita' di Roma Tor Vergata, 00133 Rome, Italy
| | - G Rosner
- University of Glasgow, Glasgow G12 8QQ, United Kingdom
| | - J Rowley
- Ohio University, Athens, Ohio 45701, USA
| | - F Sabatié
- IRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
| | - C Salgado
- Norfolk State University, Norfolk, Virginia 23504, USA
| | - A Schmidt
- The George Washington University, Washington, D.C. 20052, USA
| | - R A Schumacher
- Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA
| | - Y G Sharabian
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - U Shrestha
- Ohio University, Athens, Ohio 45701, USA
| | - D Sokhan
- University of Glasgow, Glasgow G12 8QQ, United Kingdom
| | - O Soto
- INFN, Laboratori Nazionali di Frascati, 00044 Frascati, Italy
| | - N Sparveris
- Temple University, Philadelphia, Pennsylvania 19122, USA
| | - S Stepanyan
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - I I Strakovsky
- The George Washington University, Washington, D.C. 20052, USA
| | - S Strauch
- University of South Carolina, Columbia, South Carolina 29208, USA
| | - N Tyler
- University of South Carolina, Columbia, South Carolina 29208, USA
| | - R Tyson
- University of Glasgow, Glasgow G12 8QQ, United Kingdom
| | - M Ungaro
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
- University of Connecticut, Storrs, Connecticut 06269, USA
| | - L Venturelli
- Università degli Studi di Brescia, 25123 Brescia, Italy
- INFN, Sezione di Pavia, 27100 Pavia, Italy
| | - H Voskanyan
- Yerevan Physics Institute, 375036 Yerevan, Armenia
| | - E Voutier
- Universit'e Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France
| | - D P Watts
- University of York, York YO10 5DD, United Kingdom
| | - K Wei
- University of Connecticut, Storrs, Connecticut 06269, USA
| | - X Wei
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - B Yale
- College of William and Mary, Williamsburg, Virginia 23187-8795, USA
| | - N Zachariou
- University of York, York YO10 5DD, United Kingdom
| | - J Zhang
- Old Dominion University, Norfolk, Virginia 23529, USA
- University of Virginia, Charlottesville, Virginia 22901j, USA
| | - Z W Zhao
- University of South Carolina, Columbia, South Carolina 29208, USA
- Duke University, Durham, North Carolina 27708-0305, USA
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13
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Mirazita M, Avakian H, Courtoy A, Pisano S, Adhikari S, Amaryan MJ, Angelini G, Atac H, Baltzell NA, Barion L, Battaglieri M, Bedlinskiy I, Benmokhtar F, Bianconi A, Biselli AS, Bossù F, Boiarinov S, Briscoe WJ, Brooks WK, Bulumulla D, Burkert VD, Carman DS, Carvajal JC, Celentano A, Chatagnon P, Chetry T, Ciullo G, Clary B, Cole PL, Contalbrigo M, Crede V, D'Angelo A, Dashyan N, De Vita R, Defurne M, Deur A, Diehl S, Dilks C, Djalali C, Dupre R, Egiyan H, Ehrhart M, Alaoui AE, Fassi LE, Eugenio P, Fegan S, Fersch R, Filippi A, Forest TA, Ghandilyan Y, Gavalian G, Gilfoyle GP, Giovanetti KL, Girod FX, Glazier DI, Golovatch E, Gothe RW, Griffioen KA, Guidal M, Guo L, Hafidi K, Hakobyan H, Hattawy M, Hayward TB, Heddle D, Hicks K, Hobart A, Holtrop M, Huang Q, Ilieva Y, Ireland DG, Ishkhanov BS, Isupov EL, Jenkins D, Jo HS, Joo K, Keller D, Khanal A, Khandaker M, Kim CW, Kim W, Klein FJ, Kubarovsky V, Kuhn SE, Lanza L, Leali M, Lenisa P, Livingston K, MacGregor IJD, Marchand D, Markov N, Marsicano L, Mascagna V, McKinnon B, Milner RG, Mineeva T, Mokeev V, Mullen C, Camacho CM, Neupane K, Niculescu G, O'Connell T, Osipenko M, Paolone M, Pappalardo LL, Paremuzyan R, Park K, Pasyuk E, Phelps W, Pocanic D, Pogorelko O, Poudel J, Prok Y, Raue BA, Ripani M, Ritman J, Rizzo A, Rossi P, Sabatié F, Salgado C, Schmidt A, Schumacher RA, Sharabian YG, Shrestha U, Soto O, Sparveris N, Stepanyan S, Strakovsky II, Strauch S, Tyler N, Ungaro M, Venturelli L, Voskanyan H, Vossen A, Voutier E, Watts D, Wei K, Wei X, Wood MH, Yale B, Zachariou N, Zhang J, Zhao ZW. Beam Spin Asymmetry in Semi-Inclusive Electroproduction of Hadron Pairs. Phys Rev Lett 2021; 126:062002. [PMID: 33635681 DOI: 10.1103/physrevlett.126.062002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2020] [Revised: 12/23/2020] [Accepted: 01/12/2021] [Indexed: 06/12/2023]
Abstract
A first measurement of the longitudinal beam spin asymmetry A_{LU} in the semi-inclusive electroproduction of pairs of charged pions is reported. A_{LU} is a higher-twist observable and offers the cleanest access to the nucleon twist-3 parton distribution function e(x). Data have been collected in the Hall-B at Jefferson Lab by impinging a 5.498-GeV electron beam on a liquid-hydrogen target, and reconstructing the scattered electron and the pion pair with the CLAS detector. One-dimensional projections of the A_{LU}^{sinϕ_{R}} moments are extracted for the kinematic variables of interest in the valence quark region. The understanding of dihadron production is essential for the interpretation of observables in single-hadron production in semi-inclusive DIS, and pioneering measurements of single-spin asymmetries in dihadron production open a new avenue in studies of QCD dynamics.
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Affiliation(s)
- M Mirazita
- INFN, Laboratori Nazionali di Frascati, 00044 Frascati, Italy
| | - H Avakian
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - A Courtoy
- Instituto de Física, Universidad Nacional Autónoma de México Apartado Postal 20-364, Ciudad de México 01000, Mexico
| | - S Pisano
- Centro Fermi-Museo Storico della Fisica e Centro Studi e Ricerche Enrico Fermi, 00184 Rome, Italy
| | - S Adhikari
- Florida International University, Miami, Florida 33199, USA
| | - M J Amaryan
- Old Dominion University, Norfolk, Virginia 23529, USA
| | | | - H Atac
- Temple University, Philadelphia, Pennsylvania 19122, USA
| | - N A Baltzell
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - L Barion
- INFN, Sezione di Ferrara, 44100 Ferrara, Italy
| | - M Battaglieri
- INFN, Sezione di Genova, 16146 Genova, Italy
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - I Bedlinskiy
- National Research Centre Kurchatov Institute-ITEP, Moscow 117259, Russia
| | - Fatiha Benmokhtar
- Duquesne University, 600 Forbes Avenue, Pittsburgh, Pennsylvania 15282, USA
| | - A Bianconi
- INFN, Sezione di Pavia, 27100 Pavia, Italy
- Università degli Studi di Brescia, 25123 Brescia, Italy
| | - A S Biselli
- Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA
- Fairfield University, Fairfield Connecticut 06824, USA
| | - F Bossù
- IRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
| | - S Boiarinov
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - W J Briscoe
- The George Washington University, Washington, D.C. 20052, USA
| | - W K Brooks
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
- Universidad Técnica Federico Santa María, Casilla 110-V Valparaíso, Chile
| | - D Bulumulla
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - V D Burkert
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - D S Carman
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - J C Carvajal
- Florida International University, Miami, Florida 33199, USA
| | - A Celentano
- INFN, Sezione di Genova, 16146 Genova, Italy
| | - P Chatagnon
- Universit'e Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France
| | - T Chetry
- Mississippi State University, Mississippi State, Mississippi 39762-5167, USA
| | - G Ciullo
- Universita' di Ferrara, 44121 Ferrara, Italy
- INFN, Sezione di Ferrara, 44100 Ferrara, Italy
| | - B Clary
- University of Connecticut, Storrs, Connecticut 06269, USA
| | - P L Cole
- Lamar University, 4400 MLK Blvd, PO Box 10009, Beaumont, Texas 77710, USA
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | | | - V Crede
- Florida State University, Tallahassee, Florida 32306, USA
| | - A D'Angelo
- INFN, Sezione di Roma Tor Vergata, 00133 Rome, Italy
- Universita' di Roma Tor Vergata, 00133 Rome Italy
| | - N Dashyan
- Yerevan Physics Institute, 375036 Yerevan, Armenia
| | - R De Vita
- INFN, Sezione di Genova, 16146 Genova, Italy
| | - M Defurne
- IRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
| | - A Deur
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - S Diehl
- University of Connecticut, Storrs, Connecticut 06269, USA
| | - C Dilks
- Duke University, Durham, North Carolina 27708-0305, USA
| | - C Djalali
- Ohio University, Athens, Ohio 45701, USA
- University of South Carolina, Columbia, South Carolina 29208, USA
| | - R Dupre
- Universit'e Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France
| | - H Egiyan
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - M Ehrhart
- Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - A El Alaoui
- Universidad Técnica Federico Santa María, Casilla 110-V Valparaíso, Chile
| | - L El Fassi
- Mississippi State University, Mississippi State, Mississippi 39762-5167, USA
| | - P Eugenio
- Florida State University, Tallahassee, Florida 32306, USA
| | - S Fegan
- University of York, York YO10 5DD, United Kingdom
| | - R Fersch
- Christopher Newport University, Newport News, Virginia 23606, USA
- College of William and Mary, Williamsburg, Virginia 23187-8795, USA
| | - A Filippi
- INFN, Sezione di Torino, 10125 Torino, Italy
| | - T A Forest
- Idaho State University, Pocatello, Idaho 83209, USA
| | - Y Ghandilyan
- Yerevan Physics Institute, 375036 Yerevan, Armenia
| | - G Gavalian
- University of New Hampshire, Durham, New Hampshire 03824-3568, USA
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - G P Gilfoyle
- University of Richmond, Richmond, Virginia 23173, USA
| | - K L Giovanetti
- James Madison University, Harrisonburg, Virginia 22807, USA
| | - F X Girod
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - D I Glazier
- University of Glasgow, Glasgow G12 8QQ, United Kingdom
| | - E Golovatch
- Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University, 119234 Moscow, Russia
| | - R W Gothe
- University of South Carolina, Columbia, South Carolina 29208, USA
| | - K A Griffioen
- College of William and Mary, Williamsburg, Virginia 23187-8795, USA
| | - M Guidal
- Universit'e Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France
| | - L Guo
- Florida International University, Miami, Florida 33199, USA
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - K Hafidi
- Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - H Hakobyan
- Universidad Técnica Federico Santa María, Casilla 110-V Valparaíso, Chile
- Yerevan Physics Institute, 375036 Yerevan, Armenia
| | - M Hattawy
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - T B Hayward
- College of William and Mary, Williamsburg, Virginia 23187-8795, USA
| | - D Heddle
- Christopher Newport University, Newport News, Virginia 23606, USA
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - K Hicks
- Ohio University, Athens, Ohio 45701, USA
| | - A Hobart
- Universit'e Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France
| | - M Holtrop
- University of New Hampshire, Durham, New Hampshire 03824-3568, USA
| | - Q Huang
- IRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
| | - Y Ilieva
- The George Washington University, Washington, D.C. 20052, USA
- University of South Carolina, Columbia, South Carolina 29208, USA
| | - D G Ireland
- University of Glasgow, Glasgow G12 8QQ, United Kingdom
| | - B S Ishkhanov
- Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University, 119234 Moscow, Russia
| | - E L Isupov
- Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University, 119234 Moscow, Russia
| | - D Jenkins
- Virginia Tech, Blacksburg, Virginia 24061-0435, USA
| | - H S Jo
- Universit'e Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France
- Kyungpook National University, Daegu 41566, Republic of Korea
| | - K Joo
- University of Connecticut, Storrs, Connecticut 06269, USA
| | - D Keller
- University of Virginia, Charlottesville, Virginia 22901, USA
| | - A Khanal
- Florida International University, Miami, Florida 33199, USA
| | - M Khandaker
- Norfolk State University, Norfolk, Virginia 23504, USA
| | - C W Kim
- The George Washington University, Washington, D.C. 20052, USA
| | - W Kim
- Kyungpook National University, Daegu 41566, Republic of Korea
| | - F J Klein
- Catholic University of America, Washington, D.C. 20064, USA
| | - V Kubarovsky
- Rensselaer Polytechnic Institute, Troy, New York 12180-3590, USA
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - S E Kuhn
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - L Lanza
- INFN, Sezione di Roma Tor Vergata, 00133 Rome, Italy
| | - M Leali
- INFN, Sezione di Pavia, 27100 Pavia, Italy
- Università degli Studi di Brescia, 25123 Brescia, Italy
| | - P Lenisa
- Universita' di Ferrara, 44121 Ferrara, Italy
- INFN, Sezione di Ferrara, 44100 Ferrara, Italy
| | - K Livingston
- University of Glasgow, Glasgow G12 8QQ, United Kingdom
| | | | - D Marchand
- Universit'e Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France
| | - N Markov
- University of Connecticut, Storrs, Connecticut 06269, USA
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - L Marsicano
- INFN, Sezione di Genova, 16146 Genova, Italy
| | - V Mascagna
- INFN, Sezione di Pavia, 27100 Pavia, Italy
- Università degli Studi dell'Insubria, 22100 Como, Italy
| | - B McKinnon
- University of Glasgow, Glasgow G12 8QQ, United Kingdom
| | - R G Milner
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139-4307, USA
| | - T Mineeva
- Universidad Técnica Federico Santa María, Casilla 110-V Valparaíso, Chile
| | - V Mokeev
- Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University, 119234 Moscow, Russia
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - C Mullen
- INFN, Sezione di Genova, 16146 Genova, Italy
| | - C Munoz Camacho
- Universit'e Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France
| | - K Neupane
- University of South Carolina, Columbia, South Carolina 29208, USA
| | - G Niculescu
- James Madison University, Harrisonburg, Virginia 22807, USA
- Ohio University, Athens, Ohio 45701, USA
| | - T O'Connell
- University of Connecticut, Storrs, Connecticut 06269, USA
| | - M Osipenko
- INFN, Sezione di Genova, 16146 Genova, Italy
| | - M Paolone
- Temple University, Philadelphia, Pennsylvania 19122, USA
| | - L L Pappalardo
- Universita' di Ferrara, 44121 Ferrara, Italy
- INFN, Sezione di Ferrara, 44100 Ferrara, Italy
| | - R Paremuzyan
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - K Park
- Kyungpook National University, Daegu 41566, Republic of Korea
| | - E Pasyuk
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - W Phelps
- Christopher Newport University, Newport News, Virginia 23606, USA
| | - D Pocanic
- University of Virginia, Charlottesville, Virginia 22901, USA
| | - O Pogorelko
- National Research Centre Kurchatov Institute-ITEP, Moscow 117259, Russia
| | - J Poudel
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - Y Prok
- Old Dominion University, Norfolk, Virginia 23529, USA
- University of Virginia, Charlottesville, Virginia 22901, USA
| | - B A Raue
- Florida International University, Miami, Florida 33199, USA
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - M Ripani
- INFN, Sezione di Genova, 16146 Genova, Italy
| | - J Ritman
- Institute fur Kernphysik (Juelich), Juelich 52428, Germany
| | - A Rizzo
- INFN, Sezione di Roma Tor Vergata, 00133 Rome, Italy
- Universita' di Roma Tor Vergata, 00133 Rome Italy
| | - P Rossi
- INFN, Laboratori Nazionali di Frascati, 00044 Frascati, Italy
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - F Sabatié
- IRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
| | - C Salgado
- Norfolk State University, Norfolk, Virginia 23504, USA
| | - A Schmidt
- The George Washington University, Washington, D.C. 20052, USA
| | - R A Schumacher
- Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA
| | - Y G Sharabian
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - U Shrestha
- Ohio University, Athens, Ohio 45701, USA
| | - O Soto
- INFN, Laboratori Nazionali di Frascati, 00044 Frascati, Italy
| | - N Sparveris
- Temple University, Philadelphia, Pennsylvania 19122, USA
| | - S Stepanyan
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - I I Strakovsky
- The George Washington University, Washington, D.C. 20052, USA
| | - S Strauch
- The George Washington University, Washington, D.C. 20052, USA
- University of South Carolina, Columbia, South Carolina 29208, USA
| | - N Tyler
- University of South Carolina, Columbia, South Carolina 29208, USA
| | - M Ungaro
- Rensselaer Polytechnic Institute, Troy, New York 12180-3590, USA
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - L Venturelli
- INFN, Sezione di Pavia, 27100 Pavia, Italy
- Università degli Studi di Brescia, 25123 Brescia, Italy
| | - H Voskanyan
- Yerevan Physics Institute, 375036 Yerevan, Armenia
| | - A Vossen
- Duke University, Durham, North Carolina 27708-0305, USA
| | - E Voutier
- Universit'e Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France
| | - D Watts
- University of York, York YO10 5DD, United Kingdom
| | - K Wei
- University of Connecticut, Storrs, Connecticut 06269, USA
| | - X Wei
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - M H Wood
- Canisius College, Buffalo, New York 14208, USA
- University of South Carolina, Columbia, South Carolina 29208, USA
| | - B Yale
- College of William and Mary, Williamsburg, Virginia 23187-8795, USA
| | - N Zachariou
- University of York, York YO10 5DD, United Kingdom
| | - J Zhang
- University of Virginia, Charlottesville, Virginia 22901, USA
| | - Z W Zhao
- Duke University, Durham, North Carolina 27708-0305, USA
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14
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Diehl S, Joo K, Kim A, Avakian H, Kroll P, Park K, Riser D, Semenov-Tian-Shansky K, Tezgin K, Adhikari KP, Adhikari S, Amaryan MJ, Angelini G, Asryan G, Atac H, Barion L, Battaglieri M, Bedlinskiy I, Benmokhtar F, Bianconi A, Biselli AS, Bossù F, Boiarinov S, Briscoe WJ, Brooks WK, Bulumulla D, Burkert VD, Carman DS, Carvajal JC, Celentano A, Chatagnon P, Chetry T, Ciullo G, Clark L, Cole PL, Contalbrigo M, Crede V, D'Angelo A, Dashyan N, De Vita R, Defurne M, Deur A, Dilks C, Djalali C, Dupre R, Egiyan H, Ehrhart M, El Alaoui A, El Fassi L, Eugenio P, Filippi A, Forest TA, Ghandilyan Y, Gilfoyle GP, Giovanetti KL, Girod FX, Glazier DI, Golovatch E, Gothe RW, Griffioen KA, Guidal M, Guo L, Hakobyan H, Harrison N, Hattawy M, Hayward TB, Heddle D, Hicks K, Holtrop M, Ilieva Y, Ireland DG, Ishkhanov BS, Isupov EL, Jenkins D, Jo HS, Joosten S, Keller D, Khachatryan M, Khanal A, Khandaker M, Kim CW, Kim W, Kubarovsky V, Kuhn SE, Lanza L, Leali M, Lenisa P, Livingston K, MacGregor IJD, Marchand D, Markov N, Marsicano L, Mascagna V, McKinnon B, Meziani ZE, Mineeva T, Mirazita M, Mokeev V, Munoz Camacho C, Nadel-Turonski P, Niculescu G, Osipenko M, Paolone M, Pappalardo LL, Pasyuk E, Phelps W, Pogorelko O, Price JW, Prok Y, Raue BA, Ripani M, Rizzo A, Rossi P, Rowley J, Sabatié F, Salgado C, Schmidt A, Schumacher RA, Sharabian YG, Shrestha U, Soto O, Sparveris N, Stepanyan S, Stoler P, Strakovsky II, Strauch S, Tan JA, Tyler N, Ungaro M, Venturelli L, Voskanyan H, Voutier E, Watts DP, Wei X, Wood MH, Zachariou N, Zhang J, Zhao ZW. Extraction of Beam-Spin Asymmetries from the Hard Exclusive π^{+} Channel off Protons in a Wide Range of Kinematics. Phys Rev Lett 2020; 125:182001. [PMID: 33196236 DOI: 10.1103/physrevlett.125.182001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2020] [Revised: 06/08/2020] [Accepted: 07/30/2020] [Indexed: 06/11/2023]
Abstract
We have measured beam-spin asymmetries to extract the sinϕ moment A_{LU}^{sinϕ} from the hard exclusive e[over →]p→e^{'}nπ^{+} reaction above the resonance region, for the first time with nearly full coverage from forward to backward angles in the center of mass. The A_{LU}^{sinϕ} moment has been measured up to 6.6 GeV^{2} in -t, covering the kinematic regimes of generalized parton distributions (GPD) and baryon-to-meson transition distribution amplitudes (TDA) at the same time. The experimental results in very forward kinematics demonstrate the sensitivity to chiral-odd and chiral-even GPDs. In very backward kinematics where the TDA framework is applicable, we found A_{LU}^{sinϕ} to be negative, while a sign change was observed near 90° in the center of mass. The unique results presented in this Letter will provide critical constraints to establish reaction mechanisms that can help to further develop the GPD and TDA frameworks.
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Affiliation(s)
- S Diehl
- University of Connecticut, Storrs, Connecticut 06269, USA
- Justus Liebig University Giessen, 35392 Giessen, Germany
| | - K Joo
- University of Connecticut, Storrs, Connecticut 06269, USA
| | - A Kim
- University of Connecticut, Storrs, Connecticut 06269, USA
| | - H Avakian
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - P Kroll
- Fachbereich Physik, Universitat Wuppertal, D-42097 Wuppertal, Germany
| | - K Park
- Kyungpook National University, Daegu 41566, Republic of Korea
| | - D Riser
- University of Connecticut, Storrs, Connecticut 06269, USA
| | | | - K Tezgin
- University of Connecticut, Storrs, Connecticut 06269, USA
| | - K P Adhikari
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - S Adhikari
- Florida International University, Miami, Florida 33199, USA
| | - M J Amaryan
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - G Angelini
- The George Washington University, Washington, District of Columbia 20052, USA
| | - G Asryan
- Yerevan Physics Institute, 375036 Yerevan, Armenia
| | - H Atac
- Temple University, Philadelphia, Pennsylvania 19122, USA
| | - L Barion
- INFN, Sezione di Ferrara, 44100 Ferrara, Italy
| | - M Battaglieri
- INFN, Sezione di Genova, 16146 Genova, Italy
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - I Bedlinskiy
- National Research Centre Kurchatov Institute-ITEP, Moscow, 117259, Russia
| | - F Benmokhtar
- Duquesne University, 600 Forbes Avenue, Pittsburgh, Pennsylvania 15282, USA
| | - A Bianconi
- INFN, Sezione di Pavia, 27100 Pavia, Italy
- Università degli Studi di Brescia, 25123 Brescia, Italy
| | - A S Biselli
- Fairfield University, Fairfield, Connecticut 06824, USA
| | - F Bossù
- IRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
| | - S Boiarinov
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - W J Briscoe
- The George Washington University, Washington, District of Columbia 20052, USA
| | - W K Brooks
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
- Universidad Técnica Federico Santa María, Casilla 110-V Valparaíso, Chile
| | - D Bulumulla
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - V D Burkert
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - D S Carman
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - J C Carvajal
- Florida International University, Miami, Florida 33199, USA
| | - A Celentano
- INFN, Sezione di Genova, 16146 Genova, Italy
| | - P Chatagnon
- Universit'e Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France
| | - T Chetry
- Mississippi State University, Mississippi State, Mississippi 39762-5167, USA
| | - G Ciullo
- Universita' di Ferrara , 44121 Ferrara, Italy
- INFN, Sezione di Ferrara, 44100 Ferrara, Italy
| | - L Clark
- University of Glasgow, Glasgow G12 8QQ, United Kingdom
| | - P L Cole
- Lamar University, Beaumont, Texas 77705, USA
| | | | - V Crede
- Florida State University, Tallahassee, Florida 32306, USA
| | - A D'Angelo
- INFN, Sezione di Roma Tor Vergata, 00133 Rome, Italy
- Universita' di Roma Tor Vergata, 00133 Rome Italy
| | - N Dashyan
- Yerevan Physics Institute, 375036 Yerevan, Armenia
| | - R De Vita
- INFN, Sezione di Genova, 16146 Genova, Italy
| | - M Defurne
- IRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
| | - A Deur
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - C Dilks
- Duke University, Durham, North Carolina 27708-0305, USA
| | - C Djalali
- Ohio University, Athens, Ohio 45701, USA
- University of South Carolina, Columbia, South Carolina 29208, USA
| | - R Dupre
- Universit'e Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France
| | - H Egiyan
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - M Ehrhart
- Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - A El Alaoui
- Universidad Técnica Federico Santa María, Casilla 110-V Valparaíso, Chile
| | - L El Fassi
- Mississippi State University, Mississippi State, Mississippi 39762-5167, USA
| | - P Eugenio
- Florida State University, Tallahassee, Florida 32306, USA
| | - A Filippi
- INFN, Sezione di Torino, 10125 Torino, Italy
| | - T A Forest
- Idaho State University, Pocatello, Idaho 83209
| | - Y Ghandilyan
- Yerevan Physics Institute, 375036 Yerevan, Armenia
| | - G P Gilfoyle
- University of Richmond, Richmond, Virginia 23173, USA
| | - K L Giovanetti
- James Madison University, Harrisonburg, Virginia 22807, USA
| | - F X Girod
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - D I Glazier
- University of Glasgow, Glasgow G12 8QQ, United Kingdom
| | - E Golovatch
- Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University, 119234 Moscow, Russia
| | - R W Gothe
- University of South Carolina, Columbia, South Carolina 29208, USA
| | - K A Griffioen
- College of William and Mary, Williamsburg, Virginia 23187-8795, USA
| | - M Guidal
- Universit'e Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France
| | - L Guo
- Florida International University, Miami, Florida 33199, USA
| | - H Hakobyan
- Universidad Técnica Federico Santa María, Casilla 110-V Valparaíso, Chile
- Yerevan Physics Institute, 375036 Yerevan, Armenia
| | - N Harrison
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - M Hattawy
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - T B Hayward
- College of William and Mary, Williamsburg, Virginia 23187-8795, USA
| | - D Heddle
- Christopher Newport University, Newport News, Virginia 23606, USA
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - K Hicks
- Ohio University, Athens, Ohio 45701, USA
| | - M Holtrop
- University of New Hampshire, Durham, New Hampshire 03824-3568, USA
| | - Y Ilieva
- The George Washington University, Washington, District of Columbia 20052, USA
- University of South Carolina, Columbia, South Carolina 29208, USA
| | - D G Ireland
- University of Glasgow, Glasgow G12 8QQ, United Kingdom
| | - B S Ishkhanov
- Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University, 119234 Moscow, Russia
| | - E L Isupov
- Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University, 119234 Moscow, Russia
| | - D Jenkins
- Virginia Tech, Blacksburg, Virginia 24061-0435, USA
| | - H S Jo
- Kyungpook National University, Daegu 41566, Republic of Korea
| | - S Joosten
- Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - D Keller
- University of Virginia, Charlottesville, Virginia 22901, USA
| | - M Khachatryan
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - A Khanal
- Florida International University, Miami, Florida 33199, USA
| | - M Khandaker
- National Research Centre Kurchatov Institute, Petersburg Nuclear Physics Institute, RU-188300 Gatchina, Russia
| | - C W Kim
- The George Washington University, Washington, District of Columbia 20052, USA
| | - W Kim
- Kyungpook National University, Daegu 41566, Republic of Korea
| | - V Kubarovsky
- Rensselaer Polytechnic Institute, Troy, New York 12180-3590, USA
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - S E Kuhn
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - L Lanza
- INFN, Sezione di Roma Tor Vergata, 00133 Rome, Italy
| | - M Leali
- INFN, Sezione di Pavia, 27100 Pavia, Italy
- Università degli Studi di Brescia, 25123 Brescia, Italy
| | - P Lenisa
- INFN, Sezione di Ferrara, 44100 Ferrara, Italy
| | - K Livingston
- University of Glasgow, Glasgow G12 8QQ, United Kingdom
| | | | - D Marchand
- Universit'e Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France
| | - N Markov
- University of Connecticut, Storrs, Connecticut 06269, USA
| | - L Marsicano
- INFN, Sezione di Genova, 16146 Genova, Italy
| | - V Mascagna
- INFN, Sezione di Pavia, 27100 Pavia, Italy
- Università degli Studi dell'Insubria, 22100 Como, Italy
| | - B McKinnon
- University of Glasgow, Glasgow G12 8QQ, United Kingdom
| | - Z E Meziani
- Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - T Mineeva
- Universidad Técnica Federico Santa María, Casilla 110-V Valparaíso, Chile
| | - M Mirazita
- INFN, Laboratori Nazionali di Frascati, 00044 Frascati, Italy
| | - V Mokeev
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - C Munoz Camacho
- Universit'e Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France
| | - P Nadel-Turonski
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - G Niculescu
- James Madison University, Harrisonburg, Virginia 22807, USA
| | - M Osipenko
- INFN, Sezione di Genova, 16146 Genova, Italy
| | - M Paolone
- Temple University, Philadelphia, Pennsylvania 19122, USA
| | - L L Pappalardo
- Universita' di Ferrara , 44121 Ferrara, Italy
- INFN, Sezione di Ferrara, 44100 Ferrara, Italy
| | - E Pasyuk
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - W Phelps
- Christopher Newport University, Newport News, Virginia 23606, USA
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - O Pogorelko
- National Research Centre Kurchatov Institute-ITEP, Moscow, 117259, Russia
| | - J W Price
- California State University, Dominguez Hills, Carson, California 90747, USA
| | - Y Prok
- Old Dominion University, Norfolk, Virginia 23529, USA
- University of Virginia, Charlottesville, Virginia 22901, USA
| | - B A Raue
- Florida International University, Miami, Florida 33199, USA
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - M Ripani
- INFN, Sezione di Genova, 16146 Genova, Italy
| | - A Rizzo
- INFN, Sezione di Roma Tor Vergata, 00133 Rome, Italy
- Universita' di Roma Tor Vergata, 00133 Rome Italy
| | - P Rossi
- INFN, Laboratori Nazionali di Frascati, 00044 Frascati, Italy
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - J Rowley
- Ohio University, Athens, Ohio 45701, USA
| | - F Sabatié
- IRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
| | - C Salgado
- Norfolk State University, Norfolk, Virginia 23504, USA
| | - A Schmidt
- The George Washington University, Washington, District of Columbia 20052, USA
| | - R A Schumacher
- Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA
| | - Y G Sharabian
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - U Shrestha
- Ohio University, Athens, Ohio 45701, USA
| | - O Soto
- INFN, Laboratori Nazionali di Frascati, 00044 Frascati, Italy
| | - N Sparveris
- Temple University, Philadelphia, Pennsylvania 19122, USA
| | - S Stepanyan
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - P Stoler
- Rensselaer Polytechnic Institute, Troy, New York 12180-3590, USA
| | - I I Strakovsky
- The George Washington University, Washington, District of Columbia 20052, USA
| | - S Strauch
- The George Washington University, Washington, District of Columbia 20052, USA
- University of South Carolina, Columbia, South Carolina 29208, USA
| | - J A Tan
- Kyungpook National University, Daegu 41566, Republic of Korea
| | - N Tyler
- University of South Carolina, Columbia, South Carolina 29208, USA
| | - M Ungaro
- Rensselaer Polytechnic Institute, Troy, New York 12180-3590, USA
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - L Venturelli
- INFN, Sezione di Pavia, 27100 Pavia, Italy
- Università degli Studi di Brescia, 25123 Brescia, Italy
| | - H Voskanyan
- Yerevan Physics Institute, 375036 Yerevan, Armenia
| | - E Voutier
- Universit'e Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France
| | - D P Watts
- University of York, York YO10 5DD, United Kingdom
| | - X Wei
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - M H Wood
- Canisius College, Buffalo, New York 14208, USA
- University of South Carolina, Columbia, South Carolina 29208, USA
| | - N Zachariou
- University of York, York YO10 5DD, United Kingdom
| | - J Zhang
- University of Virginia, Charlottesville, Virginia 22901, USA
| | - Z W Zhao
- Duke University, Durham, North Carolina 27708-0305, USA
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15
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Kohler A, Venturelli L, Longo G, Dietler G, Kasas S. Nanomotion detection based on atomic force microscopy cantilevers. Cell Surf 2019; 5:100021. [PMID: 32743137 PMCID: PMC7388971 DOI: 10.1016/j.tcsw.2019.100021] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2018] [Revised: 02/14/2019] [Accepted: 02/26/2019] [Indexed: 11/16/2022] Open
Abstract
Atomic force microscopes (AFM) or low-noise in-house dedicated devices can highlight nanomotion oscillations. The method consists of attaching the organism of interest onto a silicon-based sensor and following its nano-scale motion as a function of time. The nanometric scale oscillations exerted by biological specimens last as long the organism is viable and reflect the status of the microorganism metabolism upon exposure to different chemical or physical stimuli. During the last couple of years, the nanomotion pattern of several types of bacteria, yeasts and mammalian cells has been determined. This article reviews this technique in details, presents results obtained with dozens of different microorganisms and discusses the potential applications of nanomotion in fundamental research, medical microbiology and space exploration.
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Affiliation(s)
- A.C. Kohler
- Laboratoire de Physique de la Matière Vivante, EPFL, CH-1015 Lausanne, Switzerland
| | - L. Venturelli
- Laboratoire de Physique de la Matière Vivante, EPFL, CH-1015 Lausanne, Switzerland
| | - G. Longo
- Istituto di Struttura della Materia ISM-CNR, Rome, Italy
| | - G. Dietler
- Laboratoire de Physique de la Matière Vivante, EPFL, CH-1015 Lausanne, Switzerland
| | - S. Kasas
- Laboratoire de Physique de la Matière Vivante, EPFL, CH-1015 Lausanne, Switzerland
- Unité Facultaire d’Anatomie et de Morphologie, CUMRL, Université de Lausanne, CH-1005 Lausanne, Switzerland
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16
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Mustazzolu A, Venturelli L, Dinarelli S, Brown K, Floto RA, Dietler G, Fattorini L, Kasas S, Girasole M, Longo G. A Rapid Unraveling of the Activity and Antibiotic Susceptibility of Mycobacteria. Antimicrob Agents Chemother 2019; 63:e02194-18. [PMID: 30602518 PMCID: PMC6395931 DOI: 10.1128/aac.02194-18] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2018] [Accepted: 12/14/2018] [Indexed: 01/10/2023] Open
Abstract
The development of antibiotic-resistant bacteria is a worldwide health-related emergency that calls for new tools to study the bacterial metabolism and to obtain fast diagnoses. Indeed, the conventional analysis time scale is too long and affects our ability to fight infections. Slowly growing bacteria represent a bigger challenge, since their analysis may require up to months. Among these bacteria, Mycobacterium tuberculosis, the causative agent of tuberculosis, has caused more than 10 million new cases and 1.7 million deaths in 2016 only. We employed a particularly powerful nanomechanical oscillator, the nanomotion sensor, to characterize rapidly and in real time tuberculous and nontuberculous bacterial species, Mycobacterium bovis bacillus Calmette-Guérin and Mycobacterium abscessus, respectively, exposed to different antibiotics. Here, we show how high-speed and high-sensitivity detectors, the nanomotion sensors, can provide a rapid and reliable analysis of different mycobacterial species, obtaining qualitative and quantitative information on their responses to different drugs. This is the first application of the technique to tackle the urgent medical issue of mycobacterial infections, evaluating the dynamic response of bacteria to different antimicrobial families and the role of the replication rate in the resulting nanomotion pattern. In addition to a fast analysis, which could massively benefit patients and the overall health care system, we investigated the real-time responses of the bacteria to extract unique information on the bacterial mechanisms triggered in response to antibacterial pressure, with consequences both at the clinical level and at the microbiological level.
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Affiliation(s)
| | - L Venturelli
- LPMV-IPHYS, Ecole Polytechnique Fédérale Lausanne, Lausanne, Switzerland
| | - S Dinarelli
- Istituto di Struttura della Materia, Consiglio Nazionale delle Ricerche, Rome, Italy
| | - K Brown
- Molecular Immunity Unit, University of Cambridge, Cambridge, United Kingdom
| | - R A Floto
- Molecular Immunity Unit, University of Cambridge, Cambridge, United Kingdom
| | - G Dietler
- LPMV-IPHYS, Ecole Polytechnique Fédérale Lausanne, Lausanne, Switzerland
| | | | - S Kasas
- LPMV-IPHYS, Ecole Polytechnique Fédérale Lausanne, Lausanne, Switzerland
| | - M Girasole
- Istituto di Struttura della Materia, Consiglio Nazionale delle Ricerche, Rome, Italy
| | - G Longo
- Istituto di Struttura della Materia, Consiglio Nazionale delle Ricerche, Rome, Italy
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17
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Kolbinger B, Amsler C, Breuker H, Diermaier M, Dupré P, Fleck M, Gligorova A, Higaki H, Kanai Y, Kobayashi T, Leali M, Mäckel V, Malbrunot C, Mascagna V, Massiczek O, Matsuda Y, Murtagh D, Nagata Y, Sauerzopf C, Simon M, Tajima M, Ulmer S, Kuroda N, Venturelli L, Widmann E, Yamazaki Y, Zmeskal J. Recent Developments from ASACUSA on Antihydrogen Detection. EPJ Web of Conferences 2018. [DOI: 10.1051/epjconf/201818101003] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
The ASACUSA Collaboration at CERNs Antiproton Decelerator aims to measure the ground state hyperfine splitting of antihydrogen with high precision to test the fundamental symmetry of CPT (combination of charge conjugation, parity transformation, and time reversal). For this purpose an antihydrogen detector has been developed. Its task is to count the arriving antihydrogen atoms and therefore distinguish backgroundevents (mainly cosmics) from antiproton annihilations originating from antihydrogen atoms which are produced only in small amounts. A central BGO crystal disk with position sensitive read-out detects the annihilation and a surrounding two-layered hodoscope is used for tracking charged secondaries. The hodoscope has been recently upgraded to allow precise vertex reconstruction. A machine learning analysis based on measured antiproton annihilations and cosmic rays has been developed to identify antihydrogen events.
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18
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Malbrunot C, Amsler C, Arguedas Cuendis S, Breuker H, Dupre P, Fleck M, Higaki H, Kanai Y, Kolbinger B, Kuroda N, Leali M, Mäckel V, Mascagna V, Massiczek O, Matsuda Y, Nagata Y, Simon MC, Spitzer H, Tajima M, Ulmer S, Venturelli L, Widmann E, Wiesinger M, Yamazaki Y, Zmeskal J. The ASACUSA antihydrogen and hydrogen program: results and prospects. Philos Trans A Math Phys Eng Sci 2018; 376:rsta.2017.0273. [PMID: 29459412 PMCID: PMC5829175 DOI: 10.1098/rsta.2017.0273] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Accepted: 12/18/2017] [Indexed: 06/08/2023]
Abstract
The goal of the ASACUSA-CUSP collaboration at the Antiproton Decelerator of CERN is to measure the ground-state hyperfine splitting of antihydrogen using an atomic spectroscopy beamline. A milestone was achieved in 2012 through the detection of 80 antihydrogen atoms 2.7 m away from their production region. This was the first observation of 'cold' antihydrogen in a magnetic field free region. In parallel to the progress on the antihydrogen production, the spectroscopy beamline was tested with a source of hydrogen. This led to a measurement at a relative precision of 2.7×10-9 which constitutes the most precise measurement of the hydrogen hyperfine splitting in a beam. Further measurements with an upgraded hydrogen apparatus are motivated by CPT and Lorentz violation tests in the framework of the Standard Model Extension. Unlike for hydrogen, the antihydrogen experiment is complicated by the difficulty of synthesizing enough cold antiatoms in the ground state. The first antihydrogen quantum states scan at the entrance of the spectroscopy apparatus was realized in 2016 and is presented here. The prospects for a ppm measurement are also discussed.This article is part of the Theo Murphy meeting issue 'Antiproton physics in the ELENA era'.
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Affiliation(s)
- C Malbrunot
- Experimental Physics Department, CERN, Genève 23, 1211, Switzerland
- Stefan-Meyer-Institut für Subatomare Physik, Österreichische Akademie der Wissenschaften, Boltzmanngasse 3, 1090 Wien, Austria
| | - C Amsler
- Stefan-Meyer-Institut für Subatomare Physik, Österreichische Akademie der Wissenschaften, Boltzmanngasse 3, 1090 Wien, Austria
| | - S Arguedas Cuendis
- Stefan-Meyer-Institut für Subatomare Physik, Österreichische Akademie der Wissenschaften, Boltzmanngasse 3, 1090 Wien, Austria
| | - H Breuker
- Ulmer Fundamental Symmetries Laboratory, RIKEN, Wako, Saitama 351-0198, Japan
| | - P Dupre
- Ulmer Fundamental Symmetries Laboratory, RIKEN, Wako, Saitama 351-0198, Japan
| | - M Fleck
- Stefan-Meyer-Institut für Subatomare Physik, Österreichische Akademie der Wissenschaften, Boltzmanngasse 3, 1090 Wien, Austria
| | - H Higaki
- Graduate School of Advanced Sciences of Matter, Hiroshima University, Hiroshima 739-8530, Japan
| | - Y Kanai
- Nishina Center for Accelerator-Based Science, RIKEN, Wako, Saitama 351-0198, Japan
| | - B Kolbinger
- Stefan-Meyer-Institut für Subatomare Physik, Österreichische Akademie der Wissenschaften, Boltzmanngasse 3, 1090 Wien, Austria
| | - N Kuroda
- Institute of Physics, The University of Tokyo, Komaba, Meguro-ku, Tokyo 153-8902, Japan
| | - M Leali
- Dipartimento di Ingegneria dell'Informazione, Università di Brescia, Brescia 25133, Italy
- Istituto Nazionale di Fisica Nucleare, Sez. di Pavia, 27100 Pavia, Italy
| | - V Mäckel
- Stefan-Meyer-Institut für Subatomare Physik, Österreichische Akademie der Wissenschaften, Boltzmanngasse 3, 1090 Wien, Austria
| | - V Mascagna
- Dipartimento di Ingegneria dell'Informazione, Università di Brescia, Brescia 25133, Italy
- Istituto Nazionale di Fisica Nucleare, Sez. di Pavia, 27100 Pavia, Italy
| | - O Massiczek
- Stefan-Meyer-Institut für Subatomare Physik, Österreichische Akademie der Wissenschaften, Boltzmanngasse 3, 1090 Wien, Austria
| | - Y Matsuda
- Institute of Physics, The University of Tokyo, Komaba, Meguro-ku, Tokyo 153-8902, Japan
| | - Y Nagata
- Department of Physics, Tokyo University of Science, Shinjuku, Tokyo 162-8601, Japan
| | - M C Simon
- Stefan-Meyer-Institut für Subatomare Physik, Österreichische Akademie der Wissenschaften, Boltzmanngasse 3, 1090 Wien, Austria
| | - H Spitzer
- Stefan-Meyer-Institut für Subatomare Physik, Österreichische Akademie der Wissenschaften, Boltzmanngasse 3, 1090 Wien, Austria
| | - M Tajima
- Institute of Physics, The University of Tokyo, Komaba, Meguro-ku, Tokyo 153-8902, Japan
| | - S Ulmer
- Ulmer Fundamental Symmetries Laboratory, RIKEN, Wako, Saitama 351-0198, Japan
| | - L Venturelli
- Dipartimento di Ingegneria dell'Informazione, Università di Brescia, Brescia 25133, Italy
- Istituto Nazionale di Fisica Nucleare, Sez. di Pavia, 27100 Pavia, Italy
| | - E Widmann
- Stefan-Meyer-Institut für Subatomare Physik, Österreichische Akademie der Wissenschaften, Boltzmanngasse 3, 1090 Wien, Austria
| | - M Wiesinger
- Stefan-Meyer-Institut für Subatomare Physik, Österreichische Akademie der Wissenschaften, Boltzmanngasse 3, 1090 Wien, Austria
| | - Y Yamazaki
- Ulmer Fundamental Symmetries Laboratory, RIKEN, Wako, Saitama 351-0198, Japan
| | - J Zmeskal
- Stefan-Meyer-Institut für Subatomare Physik, Österreichische Akademie der Wissenschaften, Boltzmanngasse 3, 1090 Wien, Austria
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19
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Aghai-Khozani H, Corradini M, Hayano R, Hori M, Leali M, Lodi-Rizzini E, Mascagna V, Murakami Y, Prest M, Solazzi L, Vallazza E, Venturelli L, Yamada H. Experimental technique for antiproton-nucleus annihilation cross section measurements at low energy. EPJ Web Conf 2018. [DOI: 10.1051/epjconf/201818203009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
The interaction of very low energy antiprotons (ps) and antineutrons (ns) with nuclei is interesting for its influence on both fundamental cosmology and nuclear physics. Measuring the annihilation cross section of antimatter on matter can help in solving the universe matter-antimatter puzzle and could give relevant hints in the definition of strong interaction model parameters as well. The ASACUSA collaboration recently measured the antiproton-carbon annihilation cross section at 5.3 MeV of kinetic energy of the incoming antiproton. The experimental apparatus consisted in a vacuum chamber containing thin foils (~0.7-1 μm) of carbon crossed by a bunched beam of antiprotons from the CERN Antiproton Decelerator (AD). The fraction of antiprotons annihilating on the target nucleons gives origin to charged pions which can be detected and counted by segmented scintillators placed outside the chamber. This work describes the experimental details of the apparatus and the technique to perform the cross section measurements.
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20
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Aghai–Khozani H, Bianconi A, Corradini M, Hayano R, Hori M, Leali M, Lodi–Rizzini E, Mascagna V, Murakami Y, Prest M, Vallazza E, Venturelli L, Yamada H. Antiproton-nucleus annihilation cross section at low energy. EPJ Web Conf 2018. [DOI: 10.1051/epjconf/201818203013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
The antinucleon-nuclei annihilation cross sections at low energies were systematically measured at CERN in the 80’s and 90’s with the LEAR facility and later with the Antiproton Decelerator. Unfortunately only few data exist for very low energy antiprotons (p<500 MeV/c) on medium and heavy nuclei. A deeper knowledge is required by fundamental physics and can have consequence also in cosmology and medical physics. In order to fill the gap, the ASACUSA Collaboration has very recently measured the annihilation cross section of 100 MeV/c antiprotons on carbon. In the present work the experimental result is presented together with a comparison both with the antineutron data on the same target at the same energies and with the other existing antiproton data at higher energies.
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21
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Coceano G, Yousafzai MS, Ma W, Ndoye F, Venturelli L, Hussain I, Bonin S, Niemela J, Scoles G, Cojoc D, Ferrari E. Investigation into local cell mechanics by atomic force microscopy mapping and optical tweezer vertical indentation. Nanotechnology 2016; 27:065102. [PMID: 26683826 DOI: 10.1088/0957-4484/27/6/065102] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
Investigating the mechanical properties of cells could reveal a potential source of label-free markers of cancer progression, based on measurable viscoelastic parameters. The Young's modulus has proved to be the most thoroughly studied so far, however, even for the same cell type, the elastic modulus reported in different studies spans a wide range of values, mainly due to the application of different experimental conditions. This complicates the reliable use of elasticity for the mechanical phenotyping of cells. Here we combine two complementary techniques, atomic force microscopy (AFM) and optical tweezer microscopy (OTM), providing a comprehensive mechanical comparison of three human breast cell lines: normal myoepithelial (HBL-100), luminal breast cancer (MCF-7) and basal breast cancer (MDA-MB-231) cells. The elastic modulus was measured locally by AFM and OTM on single cells, using similar indentation approaches but different measurement parameters. Peak force tapping AFM was employed at nanonewton forces and high loading rates to draw a viscoelastic map of each cell and the results indicated that the region on top of the nucleus provided the most meaningful results. OTM was employed at those locations at piconewton forces and low loading rates, to measure the elastic modulus in a real elastic regime and rule out the contribution of viscous forces typical of AFM. When measured by either AFM or OTM, the cell lines' elasticity trend was similar for the aggressive MDA-MB-231 cells, which were found to be significantly softer than the other two cell types in both measurements. However, when comparing HBL-100 and MCF-7 cells, we found significant differences only when using OTM.
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Affiliation(s)
- G Coceano
- CNR-IOM National Research Council-Institute of Materials, Area Science Park, Basovizza, S.S. 14, Km 163.5, 34149 Trieste, Italy. Università degli studi di Trieste, Piazzale Europa 1, 34128 Trieste, Italy
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22
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Aghai–Khozani H, Corradini M, Hayano R, Hori M, Leali M, Lodi–Rizzini E, Mascagna V, Murakami Y, Prest M, Solazzi L, Vallazza E, Venturelli L, Yamada H. New results of the antiproton-carbon annihilation cross section measurement at low energies. EPJ Web Conf 2016. [DOI: 10.1051/epjconf/201613007014] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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23
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Aghai-Khozani H, Barna D, Corradini M, Hayano R, Hori M, Kobayashi T, Leali M, Lodi-Rizzini E, Mascagna V, Prest M, Soter A, Todoroki K, Vallazza E, Venturelli L, Zurlo N. Experimental results on antiproton–nuclei annihilation cross section at very low energies. EPJ Web of Conferences 2014. [DOI: 10.1051/epjconf/20146609001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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24
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Sótér A, Hori M, Barna D, Hayano R, Dax A, Friedreich S, Juhász B, Pask T, Widmann E, Horváth D, Venturelli L, Zurlo N. Antiproton–to–electron mass ratio determined by two-photon laser spectroscopy of antiprotonic helium atoms. EPJ Web of Conferences 2014. [DOI: 10.1051/epjconf/20146605020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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25
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Lodi-Rizzini E, Charlton M, Hayano R, Rotondi A, Venturelli L, Zurlo N. Antihydrogen formation mechanisms. EPJ Web of Conferences 2014. [DOI: 10.1051/epjconf/20146605015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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26
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Todoroki K, Hori M, Aghai-Khozani H, Barna D, Corradini M, Kobayashi T, Leali M, Lodi-Rizzini E, Mascagna V, Prest M, Soter A, Vallazza E, Venturelli L, Zurlo N, Hayano R. Beam Diagnostics for Measurements of Antiproton Annihilation Cross Sections at Ultra-low Energy. EPJ Web of Conferences 2014. [DOI: 10.1051/epjconf/20146609020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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27
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Kobayashi T, Barna D, Hayano RS, Murakami Y, Todoroki K, Yamada H, Dax A, Venturelli L, Zurlo N, Horváth D, Aghai-Khozani H, Sótér A, Hori M. Near-infrared laser spectroscopy of antiprotonic helium atoms. EPJ Web of Conferences 2014. [DOI: 10.1051/epjconf/20146605010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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28
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Enomoto Y, Kuroda N, Michishio K, Kim CH, Higaki H, Nagata Y, Kanai Y, Torii HA, Corradini M, Leali M, Lodi-Rizzini E, Mascagna V, Venturelli L, Zurlo N, Fujii K, Ohtsuka M, Tanaka K, Imao H, Nagashima Y, Matsuda Y, Juhász B, Mohri A, Yamazaki Y. Synthesis of cold antihydrogen in a cusp trap. Phys Rev Lett 2010; 105:243401. [PMID: 21231524 DOI: 10.1103/physrevlett.105.243401] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2010] [Indexed: 05/30/2023]
Abstract
We report here the first successful synthesis of cold antihydrogen atoms employing a cusp trap, which consists of a superconducting anti-Helmholtz coil and a stack of multiple ring electrodes. This success opens a new path to make a stringent test of the CPT symmetry via high precision microwave spectroscopy of ground-state hyperfine transitions of antihydrogen atoms.
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Affiliation(s)
- Y Enomoto
- RIKEN Advanced Science Institute, Hirosawa, Wako, Saitama 351-0198, Japan
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29
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Ferrando A, Costabile M, Napoleone E, Bertelloni S, Fischer A, Pontone Gravaldi S, D'amario N, Leonardi F, Venturelli L, Sferrazzo F, Colucci C, Ballestrazzi A, Giuntini F, Calzolari A, Argiolas L, Baltieri M, Pancheri P, Loschi L, Ruffato B, Pastore F, Caggiano E, Correra A. [Doping and sport: SIP-UISP-ISS experience]. Minerva Pediatr 2009; 61:712-714. [PMID: 19935532] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
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30
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Venturelli L. [To live and to die in Africa. The pouponniere de Ayamé in Ivory Coast: a help for life]. Minerva Pediatr 2009; 61:601-604. [PMID: 19935503] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
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31
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Fujiwara MC, Amoretti M, Amsler C, Bonomi G, Bouchta A, Bowe PD, Canali C, Carraro C, Cesar CL, Charlton M, Doser M, Fontana A, Funakoshi R, Genova P, Hangst JS, Hayano RS, Jørgensen LV, Kellerbauer A, Lagomarsino V, Landua R, Lodi-Rizzini E, Macri M, Madsen N, Manuzio G, Mitchard D, Montagna P, Pruys H, Regenfus C, Rotondi A, Testera G, Variola A, Venturelli L, van der Werf DP, Yamazaki Y, Zurlo N. Temporally controlled modulation of antihydrogen production and the temperature scaling of antiproton-positron recombination. Phys Rev Lett 2008; 101:053401. [PMID: 18764390 DOI: 10.1103/physrevlett.101.053401] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/02/2007] [Indexed: 05/26/2023]
Abstract
We demonstrate temporally controlled modulation of cold antihydrogen production by periodic RF heating of a positron plasma during antiproton-positron mixing in a Penning trap. Our observations have established a pulsed source of atomic antimatter, with a rise time of about 1 s, and a pulse length ranging from 3 to 100 s. Time-sensitive antihydrogen detection and positron plasma diagnostics, both capabilities of the ATHENA apparatus, allowed detailed studies of the pulsing behavior, which in turn gave information on the dependence of the antihydrogen production process on the positron temperature T. Our data are consistent with power law scaling T (-1.1+/-0.5) for the production rate in the high temperature regime from approximately 100 meV up to 1.5 eV. This is not in accord with the behavior accepted for conventional three-body recombination.
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Affiliation(s)
- M C Fujiwara
- TRIUMF, 4004 Wesbrook Mall, Vancouver, British Columbia, Canada.
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32
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Di Mauro G, Di Pietro P, Mele G, Tancredi F, Brusoni G, Venturelli L, Moretto R. [From 0 to 6 years: a guide for the family. A project of the Ministry of Health and Scientific Societies of Pediatric Area]. Minerva Pediatr 2007; 59:471-472. [PMID: 17947875] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
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33
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Amoretti M, Amsler C, Bonomi G, Bowe PD, Canali C, Carraro C, Cesar CL, Charlton M, Ejsing AM, Fontana A, Fujiwara MC, Funakoshi R, Genova P, Hangst JS, Hayano RS, Jørgensen LV, Kellerbauer A, Lagomarsino V, Lodi Rizzini E, Macrì M, Madsen N, Manuzio G, Mitchard D, Montagna P, Posada LGC, Pruys H, Regenfus C, Rotondi A, Telle HH, Testera G, Van der Werf DP, Variola A, Venturelli L, Yamazaki Y, Zurlo N. Search for laser-induced formation of antihydrogen atoms. Phys Rev Lett 2006; 97:213401. [PMID: 17155742 DOI: 10.1103/physrevlett.97.213401] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/14/2006] [Indexed: 05/12/2023]
Abstract
Antihydrogen can be synthesized by mixing antiprotons and positrons in a Penning trap environment. Here an experiment to stimulate the formation of antihydrogen in the n = 11 quantum state by the introduction of light from a CO2 continuous wave laser is described. An overall upper limit of 0.8% with 90% C.L. on the laser-induced enhancement of the recombination has been found. This result strongly suggests that radiative recombination contributes negligibly to the antihydrogen formed in the experimental conditions used by the ATHENA Collaboration.
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Affiliation(s)
- M Amoretti
- Istituto Nazionale di Fisica Nucleare, Sezione di Genova, 16146 Genova, Italy
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34
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Zurlo N, Amoretti M, Amsler C, Bonomi G, Carraro C, Cesar CL, Charlton M, Doser M, Fontana A, Funakoshi R, Genova P, Hayano RS, Jørgensen LV, Kellerbauer A, Lagomarsino V, Landua R, Rizzini EL, Macrì M, Madsen N, Manuzio G, Mitchard D, Montagna P, Posada LG, Pruys H, Regenfus C, Rotondi A, Testera G, Van der Werf DP, Variola A, Venturelli L, Yamazaki Y. Evidence for the production of slow antiprotonic hydrogen in vacuum. Phys Rev Lett 2006; 97:153401. [PMID: 17155325 DOI: 10.1103/physrevlett.97.153401] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2006] [Indexed: 05/12/2023]
Abstract
We present evidence showing how antiprotonic hydrogen, the quasistable antiproton (p)-proton bound system, has been synthesized following the interaction of antiprotons with the molecular ion H2+ in a nested Penning trap environment. From a careful analysis of the spatial distributions of antiproton annihilation events, evidence is presented for antiprotonic hydrogen production with sub-eV kinetic energies in states around n=70, and with low angular momenta. The slow antiprotonic hydrogen may be studied using laser spectroscopic techniques.
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Affiliation(s)
- N Zurlo
- Dipartimento di Chimica e Fisica per l'Ingegneria e per i Materiali, Università di Brescia, 25133 Brescia, Italy
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35
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Jørgensen LV, Amoretti M, Bonomi G, Bowe PD, Canali C, Carraro C, Cesar CL, Charlton M, Doser M, Fontana A, Fujiwara MC, Funakoshi R, Genova P, Hangst JS, Hayano RS, Kellerbauer A, Lagomarsino V, Landua R, Lodi Rizzini E, Macrì M, Madsen N, Mitchard D, Montagna P, Rotondi A, Testera G, Variola A, Venturelli L, van der Werf DP, Yamazaki Y. New source of dense, cryogenic positron plasmas. Phys Rev Lett 2005; 95:025002. [PMID: 16090691 DOI: 10.1103/physrevlett.95.025002] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2004] [Revised: 04/22/2005] [Indexed: 05/03/2023]
Abstract
We have developed a new method, based on the ballistic transfer of preaccumulated plasmas, to obtain large and dense positron plasmas in a cryogenic environment. The method involves transferring plasmas emanating from a region with a low magnetic field (0.14 T) and relatively high pressure (10(-9) mbar) into a 15 K Penning-Malmberg trap immersed in a 3 T magnetic field with a base pressure better than 10(-13) mbar. The achieved positron accumulation rate in the high field cryogenic trap is more than one and a half orders of magnitude higher than the previous most efficient UHV compatible scheme. Subsequent stacking resulted in a plasma containing more than 1.2 x 10(9) positrons, which is a factor 4 higher than previously reported. Using a rotating wall electric field, plasmas containing about 20 x 10(6) positrons were compressed to a density of 2.6 x 10(10) cm(-3). This is a factor of 6 improvement over earlier measurements.
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Affiliation(s)
- L V Jørgensen
- Department of Physics, University of Wales Swansea, Swansea SA2 8PP, United Kingdom.
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36
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Madsen N, Amoretti M, Amsler C, Bonomi G, Bowe PD, Carraro C, Cesar CL, Charlton M, Doser M, Fontana A, Fujiwara MC, Funakoshi R, Genova P, Hangst JS, Hayano RS, Jørgensen LV, Kellerbauer A, Lagomarsino V, Landua R, Lodi-Rizzini E, Macri M, Mitchard D, Montagna P, Pruys H, Regenfus C, Rotondi A, Testera G, Variola A, Venturelli L, van der Werf DP, Yamazaki Y, Zurlo N. Spatial distribution of cold antihydrogen formation. Phys Rev Lett 2005; 94:033403. [PMID: 15698264 DOI: 10.1103/physrevlett.94.033403] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/05/2004] [Indexed: 05/24/2023]
Abstract
Antihydrogen is formed when antiprotons are mixed with cold positrons in a nested Penning trap. We present experimental evidence, obtained using our antihydrogen annihilation detector, that the spatial distribution of the emerging antihydrogen atoms is independent of the positron temperature and axially enhanced. This indicates that antihydrogen is formed before the antiprotons are in thermal equilibrium with the positron plasma. This result has important implications for the trapping and spectroscopy of antihydrogen.
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Affiliation(s)
- N Madsen
- Department of Physics and Astronomy, University of Aarhus, DK-8000 Aarhus C, Denmark
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37
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Lodi Rizzini E, Bianconi A, Bussa MP, Corradini M, Donzella A, Venturelli L, Bargiotti M, Bertin A, Bruschi M, Capponi M, De Castro S, Fabbri L, Faccioli P, Galli D, Giacobbe B, Marconi U, Massa I, Piccinini M, Poli M, Semprini Cesari N, Spighi R, Vagnoni V, Vecchi S, Villa M, Vitale A, Zoccoli A, Gorchakov OE, Pontecorvo GB, Rozhdestvensky AM, Tretyak VI, Guaraldo C, Petrascu C, Balestra F, Busso L, Denisov OY, Ferrero L, Garfagnini R, Grasso A, Maggiora A, Piragino G, Tosello F, Zosi G, Margagliotti G, Santi L, Tessaro S. Barkas effect for antiproton stopping in H2. Phys Rev Lett 2002; 89:183201. [PMID: 12398596 DOI: 10.1103/physrevlett.89.183201] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2002] [Indexed: 05/24/2023]
Abstract
We report the stopping power of molecular hydrogen for antiprotons of kinetic energy above the maximum (approximately 100 keV) with the purpose of comparing with the proton one. Our result is consistent with a positive difference in antiproton-proton stopping powers above approximately 250 keV and with a maximum difference between the stopping powers of 21%+/-3% at around 600 keV.
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Affiliation(s)
- E Lodi Rizzini
- Dipartimento di Chimica e Fisica per l'Ingegneria e per i Materiali, Università di Brescia, Brescia and INFN, gruppo di Brescia, Brescia, Italy.
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38
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Bargiotti M, Bertin A, Bruschi M, Capponi M, De Castro S, Donà R, Fabbri L, Faccioli P, Galli D, Giacobbe B, Marconi U, Massa I, Piccinini M, Semprini Cesari N, Spighi R, Vagnoni V, Vecchi S, Villa M, Vitale A, Zoccoli A, Poli M, Bonomi G, Bussa MP, Corradini M, Lodi Rizzini E, Venturelli L, Zenoni A, Cicalò C, De Falco A, Masoni A, Puddu G, Serci S, Usai G, Gorchakov OE, Prakhov SN, Rozhdestvensky AM, Tretyak VI, Gianotti P, Guaraldo C, Lanaro A, Lucherini V, Petrascu C, Ricci RA, Filippini V, Fontana A, Montagna P, Rotondi A, Salvini P, Balestra F, Cerello P, Denisov O, Ferrero L, Garfagnini R, Grasso A, Maggiora A, Panzarasa A, Panzieri D, Tosello F, Astrua M, Botta E, Bressani T, Calvo D, Feliciello A, Filippi A, Mirfakhrai N, Marcello S, Agnello M, Iazzi F. Protonium annihilation intoπ0π0at rest in a liquid hydrogen target. Int J Clin Exp Med 2001. [DOI: 10.1103/physrevd.65.012001] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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39
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Benedettini A, Bertin A, Bruschi M, Capponi M, Collamati A, D'Antone I, De Castro S, Donà R, Ferretti A, Galli D, Giacobbe B, Marconi U, Massa I, Piccinini M, Poli M, Semprini Cesari N, Spighi R, Vecchi S, Vezzani A, Vigotti F, Villa M, Vitale A, Zoccoli À, Corradini M, Donzella A, Lodi Rizzini E, Venturelli L, Zenoni A, Cicalô C, Masoni A, Puddu G, Serci S, Temnikov P, Usai G, Nomokonov V, Prakhov S, Rozhdestvensky A, Sapozhnikov M, Tretyak V, Gianotti P, Guaraldo C, Lanaro A, Lucherini V, Nichitiu F, Petrascu C, Rosca A, Ableev V, Cavion C, Gastaldi U, Lombardi M, Maron G, Vannucci L, Vedovato G, Andrighetto A, Morando M, Ricci R, Bendiscioli G, Filippini V, Fontana A, Montagna P, Rotondi A, Saino A, Salvini P, Scoglio C, Balestra F, Botta E, Bressani T, Bussa M, Busso L, Calvo D, Cerello P, Costa S, D'Isep F, Fava L, Denisov O, Feliciello A, Ferrero L, Filippi A, Garfagnini R, Grasso A, Maggiora A, Marcello S, Mirfakhraee N, Panzieri D, Parena D, Rossetto E, Tosello F, Valacca L, Zosi G, Agnello M, Iazzi F, Minetti B, Margagliotti G, Pauli G, Tessaro S, Santi L. P̄P partial cross sections at low energy. ACTA ACUST UNITED AC 1997. [DOI: 10.1016/s0920-5632(97)00253-3] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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40
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Bertin A, Bruschi M, Capponi M, D'Antone I, Ferretti A, Galli D, Giacobbe B, Marconi U, Piccinini M, Spighi R, Vecchi S, Vezzani A, Vigotti F, Villa M, Vitale A, Zoccoli A, Corradini M, Donzella A, Venturelli L, Zenoni A, Cicalò C, Masoni A, Puddu G, Serci S, Temnikov P, Usai GL, Ableev VG, Denisov OY, Gorchakov OE, Prakhov SN, Rozhdestvensky AM, Sapozhnikov MG, Tretyak W, Poli M, Gianotti P, Guaraldo C, Lanaro A, Lucherini V, Nichitiu F, Petrascu C, Rosca A, Cavion C, Gastaldi U, Lombardi M, Vannucci L, Vedovato G, Morando M, Ricci RA, Bendiscioli G, Filippini V, Fontana A, Montagna P, Rotondi A, Saino A, Salvini P, Balestra F, Botta E, Bressani T, Bussa MP, Busso L, Calvo D. Experimental antiproton nuclear stopping power in H2 and D2. Phys Rev A 1996; 54:5441-5444. [PMID: 9914121 DOI: 10.1103/physreva.54.5441] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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Agnello M, Belli G, Bendiscioli G, Bertin A, Botta E, Bressani T, Bruschi M, Bussa MP, Busso L, Calvo D, Cereda B, Cerello PG, Cicalò C, Corradini M, Costa S, Donzella A, Feliciello A, Ferrero L, Filippi A, Filippini V, Fontana A, Galli D, Garfagnini R, Giacobbe B, Gianotti P, Grasso A, Guaraldo C, Iazzi F, Lanaro A, Lucherini V, Marcello S, Marconi U, Masoni A, Minetti B, Montagna P, Morando M, Nichitiu F, Panzieri D, Pauli G, Piccinini M, Puddu G, Rossetto E, Rotondi A, Rozhdestvensky AM, Saino A, Salvini P, Santi L, Sapozhnikov MG, Serci S, Spighi R, Temnikov P, Tessaro S, Tosello F, Tretyak V, Usai GL, Vecchi S, Venturelli L, Villa M, Vitale A, Zenoni A, Zoccoli A. Antiproton slowing down inH2 and He and evidence of nuclear stopping power. Phys Rev Lett 1995; 74:371-374. [PMID: 10058741 DOI: 10.1103/physrevlett.74.371] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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Ableev V, Adamo A, Agnello M, Balestra F, Belli G, Bendiscioli G, Bertin A, Boccaccio P, Bonazzola GC, Botta E, Bressani T, Bruschi M, Bussa MP, Busso L, Calvo D, Capponi M, Cereda B, Cerello P, Cicalò C, Corradini M, Costa S, De Castro S, De Leo C, Denisov DY, D’Isep F, Donzella A, Fava L, Feliciello A, Ferrero L, Filippi A, Filippini V, Fontana A, Galli TD, Garfagnini R, Gastaldi U, Giacobbe B, Gianotti P, Grasso A, Guaraldo C, Iazzi F, Lanaro A, Rizzini EL, Lombardi M, Lucherini V, Maggiora A, Marcello S, Marconi U, Margagliotti GV, Maron G, Masoni A, Massa I, Minetti B, Montagna P, Morando M, Nichitiu F, Panzieri D, Pauli G, Piccinini M, Piragino G, Poli M, Prakhov SN, Puddu G, Ricci RA, Rossetto E, Rotondi A, Rozhdestvensky AM, Saino A, Salvini P, Santi L, Sapozhnikov MG, Cesari NS, Serci S, Spighi R, Temnikov P, Tessaro S, Tosello F, Tretyak VI, Usai G, Vannucci L, Vecchi S, Vedovato G, Venturelli L, Villa M, Vitale A, Zenoni A, Zoccoli A, Zosi G. Evidence of a new state at ∼ 1660 MeV/c2 observed in $$\bar np$$ annihilationsannihilations. ACTA ACUST UNITED AC 1994. [DOI: 10.1007/bf02733990] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Ableev VG, Adamo A, Agnello M, Balestra F, Belli G, Bendiscioli G, Bertin A, Boccaccio P, Bonazzola GC, Botta E, Bressani T, Bruschi M, Bussa MP, Busso L, Calvo D, Capponi M, Cereda B, Cerello P, Cicalò C, Corradini M, Costa S, De Castro S, De Leo C, Desinov DY, D’Isep F, Donzella A, Fava L, Feliciello A, Ferrero L, Filippi A, Filippini V, Galli TD, Garfagnini R, Gastaldi U, Giacobbe B, Gianotti P, Grasso A, Guaraldo C, Iazzi F, Lanaro A, Lodi Rizzini E, Lombardi M, Lucherini V, Maggiora A, Marcello S, Marconi U, Margagliotti GV, Maron G, Masoni A, Massa I, Minetti B, Montagna P, Morando M, Nichitiu F, Panzieri D, Parena D, Pauli G, Piccinini M, Piragino G, Poli M, Prakhov SN, Puddu G, Ricci RA, Rossetto E, Rotondi A, Rozhdestvensky AM, Salvini P, Santi L, Sapozhnikov MG, Semprini-Cesari N, Serci S, Spighi R, Temnikov P, Tessaro S, Tosello F, Tretyak VI, Usai GL, Vannucci L, Vecchi S, Vedovato G, Venturelli L, Villa M, Vitale A, Zenoni A, Zoccoli A, Zosi G. Annihilation cross-sections of antineutrons on C, Al, Cu, Sn and Pb at low momenta (180–280 MeV/c) with the OBELIX spectrometer. ACTA ACUST UNITED AC 1994. [DOI: 10.1007/bf02731106] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Biza M, Buzzetti R, Calleri A, Novi M, Venturelli L. [Description of a case of Aicardi's syndrome]. Pediatr Med Chir 1984; 6:161-3. [PMID: 6531238] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Abstract
It is described a case of a Aicardi's syndrome: it is a question of a child observed for the first time when she was 3 months old in these was gived: alterations of the callosum corpus, and of the cerebellar vermis, ocular desed, epileptics convulsions and electroencephalographics alterations of ipsaritmic type.
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