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Camsonne A, Katramatou AT, Olson M, Acha A, Allada K, Anderson BD, Arrington J, Baldwin A, Chen JP, Choi S, Chudakov E, Cisbani E, Craver B, Decowski P, Dutta C, Folts E, Frullani S, Garibaldi F, Gilman R, Gomez J, Hahn B, Hansen JO, Higinbotham DW, Holmstrom T, Huang J, Iodice M, Jiang X, Kelleher A, Khrosinkova E, Kievsky A, Kuchina E, Kumbartzki G, Lee B, LeRose JJ, Lindgren RA, Lott G, Lu H, Marcucci LE, Margaziotis DJ, Markowitz P, Marrone S, Meekins D, Meziani ZE, Michaels R, Moffit B, Norum B, Petratos GG, Puckett A, Qian X, Rondon O, Saha A, Sawatzky B, Segal J, Shabestari M, Shahinyan A, Solvignon P, Sparveris N, Subedi RR, Suleiman R, Sulkosky V, Urciuoli GM, Viviani M, Wang Y, Wojtsekhowski BB, Yan X, Yao H, Zhang WM, Zheng X, Zhu L. Publisher's Note: JLab Measurements of the ^{3}He Form Factors at Large Momentum Transfers [Phys. Rev. Lett. 119, 162501 (2017)]. Phys Rev Lett 2017; 119:209901. [PMID: 29219338 DOI: 10.1103/physrevlett.119.209901] [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] [Subscribe] [Scholar Register] [Received: 11/02/2017] [Indexed: 06/07/2023]
Abstract
This corrects the article DOI: 10.1103/PhysRevLett.119.162501.
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Defurne M, Jiménez-Argüello AM, Ahmed Z, Albataineh H, Allada K, Aniol KA, Bellini V, Benali M, Boeglin W, Bertin P, Brossard M, Camsonne A, Canan M, Chandavar S, Chen C, Chen JP, de Jager CW, de Leo R, Desnault C, Deur A, El Fassi L, Ent R, Flay D, Friend M, Fuchey E, Frullani S, Garibaldi F, Gaskell D, Giusa A, Glamazdin O, Golge S, Gomez J, Hansen O, Higinbotham D, Holmstrom T, Horn T, Huang J, Huang M, Hyde CE, Iqbal S, Itard F, Kang H, Kelleher A, Keppel C, Koirala S, Korover I, LeRose JJ, Lindgren R, Long E, Magne M, Mammei J, Margaziotis DJ, Markowitz P, Mazouz M, Meddi F, Meekins D, Michaels R, Mihovilovic M, Camacho CM, Nadel-Turonski P, Nuruzzaman N, Paremuzyan R, Puckett A, Punjabi V, Qiang Y, Rakhman A, Rashad MNH, Riordan S, Roche J, Russo G, Sabatié F, Saenboonruang K, Saha A, Sawatzky B, Selvy L, Shahinyan A, Sirca S, Solvignon P, Sperduto ML, Subedi R, Sulkosky V, Sutera C, Tobias WA, Urciuoli GM, Wang D, Wojtsekhowski B, Yao H, Ye Z, Zhan X, Zhang J, Zhao B, Zhao Z, Zheng X, Zhu P. A glimpse of gluons through deeply virtual compton scattering on the proton. Nat Commun 2017; 8:1408. [PMID: 29123117 PMCID: PMC5680334 DOI: 10.1038/s41467-017-01819-3] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2017] [Accepted: 10/18/2017] [Indexed: 11/13/2022] Open
Abstract
The internal structure of nucleons (protons and neutrons) remains one of the greatest outstanding problems in modern nuclear physics. By scattering high-energy electrons off a proton we are able to resolve its fundamental constituents and probe their momenta and positions. Here we investigate the dynamics of quarks and gluons inside nucleons using deeply virtual Compton scattering (DVCS)-a highly virtual photon scatters off the proton, which subsequently radiates a photon. DVCS interferes with the Bethe-Heitler (BH) process, where the photon is emitted by the electron rather than the proton. We report herein the full determination of the BH-DVCS interference by exploiting the distinct energy dependences of the DVCS and BH amplitudes. In the regime where the scattering is expected to occur off a single quark, measurements show an intriguing sensitivity to gluons, the carriers of the strong interaction.
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Affiliation(s)
- M Defurne
- Irfu, CEA, Université Paris-Saclay, 91191, Gif-sur-Yvette, France.
| | - A Martí Jiménez-Argüello
- Institut de Physique Nucléaire CNRS-IN2P3, 15 rue Georges Clémenceau, 91406, Orsay, France
- Facultad de Física, Universidad de Valencia, Carrer del Dr. Moliner 50, 46100, Burjassot, Spain
| | - Z Ahmed
- Syracuse University, 900 South Crouse Ave., Syracuse, NY, 13244, USA
| | - H Albataineh
- Texas A&M University-Kingsville, Engineering Complex, 700 University Blvd, Kingsville, TX, 78363, USA
| | - K Allada
- Massachusetts Institute of Technology, 77 Massachusetts Ave, Cambridge, MA, 02139, USA
| | - K A Aniol
- California State University, 5151 State University Dr, Los Angeles, CA, 90032, USA
| | - V Bellini
- INFN/Sezione di Catania, Via S. Sofia, 62, 95125, Catania, Italy
| | - M Benali
- Clermont université, université Blaise Pascal, CNRS/IN2P3, 4 Avenue Blaise Pascal, 63178, Aubire Cedex, France
| | - W Boeglin
- Florida International University, 11200 SW 8th St, Miami, FL, 33199, USA
| | - P Bertin
- Clermont université, université Blaise Pascal, CNRS/IN2P3, 4 Avenue Blaise Pascal, 63178, Aubire Cedex, France
- Thomas Jefferson National Accelerator Facility, 12000 Jefferson Ave, Newport News, VA, 23606, USA
| | - M Brossard
- Clermont université, université Blaise Pascal, CNRS/IN2P3, 4 Avenue Blaise Pascal, 63178, Aubire Cedex, France
| | - A Camsonne
- Thomas Jefferson National Accelerator Facility, 12000 Jefferson Ave, Newport News, VA, 23606, USA
| | - M Canan
- Old Dominion University, Norfolk, 5115 Hampton Blvd, Norfolk, VA, 23529, USA
| | - S Chandavar
- Ohio University, 123 University Terrace, 1 Ohio University, Athens, OH, 45701, USA
| | - C Chen
- Hampton University, 100 E Queen St, Hampton, VA, 23668, USA
| | - J-P Chen
- Thomas Jefferson National Accelerator Facility, 12000 Jefferson Ave, Newport News, VA, 23606, USA
| | - C W de Jager
- Thomas Jefferson National Accelerator Facility, 12000 Jefferson Ave, Newport News, VA, 23606, USA
| | - R de Leo
- Università di Bari, Piazza Umberto I, 1, 70121, Bari, Italy
| | - C Desnault
- Institut de Physique Nucléaire CNRS-IN2P3, 15 rue Georges Clémenceau, 91406, Orsay, France
| | - A Deur
- Thomas Jefferson National Accelerator Facility, 12000 Jefferson Ave, Newport News, VA, 23606, USA
| | - L El Fassi
- Rutgers, The State University of New Jersey, 7 College Ave, New Brunswick, NJ, 08901, USA
| | - R Ent
- Thomas Jefferson National Accelerator Facility, 12000 Jefferson Ave, Newport News, VA, 23606, USA
| | - D Flay
- Temple University, 1801 N Broad St, Philadelphia, PA, 19122, USA
| | - M Friend
- Carnegie Mellon University, 5000 Forbes Ave, Pittsburgh, PA, 15213, USA
| | - E Fuchey
- Irfu, CEA, Université Paris-Saclay, 91191, Gif-sur-Yvette, France
- Clermont université, université Blaise Pascal, CNRS/IN2P3, 4 Avenue Blaise Pascal, 63178, Aubire Cedex, France
- University of Connecticut, 2390 Alumni Drive, Unit 3206, Storrs, CT, 06269, USA
| | - S Frullani
- INFN/Sezione Sanità, Viale Regina Elena 299, 00161, Roma, Italy
| | - F Garibaldi
- INFN/Sezione Sanità, Viale Regina Elena 299, 00161, Roma, Italy
| | - D Gaskell
- Thomas Jefferson National Accelerator Facility, 12000 Jefferson Ave, Newport News, VA, 23606, USA
| | - A Giusa
- INFN/Sezione di Catania, Via S. Sofia, 62, 95125, Catania, Italy
| | - O Glamazdin
- Kharkov Institute of Physics and Technology, Akademichna St, 1, Kharkov, Kharkiv Oblast, 61000, Ukraine
| | - S Golge
- North Carolina Central University, 1801 Fayetteville St, Durham, NC, 27707, USA
| | - J Gomez
- Thomas Jefferson National Accelerator Facility, 12000 Jefferson Ave, Newport News, VA, 23606, USA
| | - O Hansen
- Thomas Jefferson National Accelerator Facility, 12000 Jefferson Ave, Newport News, VA, 23606, USA
| | - D Higinbotham
- Thomas Jefferson National Accelerator Facility, 12000 Jefferson Ave, Newport News, VA, 23606, USA
| | - T Holmstrom
- Longwood University, 201 High St, Farmville, VA, 23909, USA
| | - T Horn
- The Catholic University of America, 620 Michigan Ave NE, Washington, DC, 20064, USA
| | - J Huang
- Massachusetts Institute of Technology, 77 Massachusetts Ave, Cambridge, MA, 02139, USA
| | - M Huang
- Duke University, Physics Bldg., Science Dr., Campus Box 90305, Durham, NC, 27708, USA
| | - C E Hyde
- Clermont université, université Blaise Pascal, CNRS/IN2P3, 4 Avenue Blaise Pascal, 63178, Aubire Cedex, France
- Old Dominion University, Norfolk, 5115 Hampton Blvd, Norfolk, VA, 23529, USA
| | - S Iqbal
- California State University, 5151 State University Dr, Los Angeles, CA, 90032, USA
| | - F Itard
- Clermont université, université Blaise Pascal, CNRS/IN2P3, 4 Avenue Blaise Pascal, 63178, Aubire Cedex, France
| | - H Kang
- Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seol, South Korea
| | - A Kelleher
- College of William and Mary, Department of Physics, P.O. Box 8795, Williamsburg, VA, 23187, USA
| | - C Keppel
- Thomas Jefferson National Accelerator Facility, 12000 Jefferson Ave, Newport News, VA, 23606, USA
| | - S Koirala
- Old Dominion University, Norfolk, 5115 Hampton Blvd, Norfolk, VA, 23529, USA
| | - I Korover
- Tel Aviv University, P.O. Box 39040, Tel Aviv, 6997801, Israel
| | - J J LeRose
- Thomas Jefferson National Accelerator Facility, 12000 Jefferson Ave, Newport News, VA, 23606, USA
| | - R Lindgren
- University of Virginia, 382 McCormick Rd, Charlottesville, VA, 22904, USA
| | - E Long
- Kent State University, 800 E Summit St, Kent, OH, 44240, USA
| | - M Magne
- Clermont université, université Blaise Pascal, CNRS/IN2P3, 4 Avenue Blaise Pascal, 63178, Aubire Cedex, France
| | - J Mammei
- University of Massachusetts, 1126 Lederle Graduate Research Tower (LGRT), Amherst, MA, 01003, USA
| | - D J Margaziotis
- California State University, 5151 State University Dr, Los Angeles, CA, 90032, USA
| | - P Markowitz
- Florida International University, 11200 SW 8th St, Miami, FL, 33199, USA
| | - M Mazouz
- Faculté des Sciences de Monastir, Avenue de l'environnement, 5019, Monastir, Tunisia
| | - F Meddi
- INFN/Sezione Sanità, Viale Regina Elena 299, 00161, Roma, Italy
| | - D Meekins
- Thomas Jefferson National Accelerator Facility, 12000 Jefferson Ave, Newport News, VA, 23606, USA
| | - R Michaels
- Thomas Jefferson National Accelerator Facility, 12000 Jefferson Ave, Newport News, VA, 23606, USA
| | - M Mihovilovic
- University of Ljubljana, Kongresni trg 12, 1000, Ljubljana, Slovenia
| | - C Muñoz Camacho
- Institut de Physique Nucléaire CNRS-IN2P3, 15 rue Georges Clémenceau, 91406, Orsay, France
- Clermont université, université Blaise Pascal, CNRS/IN2P3, 4 Avenue Blaise Pascal, 63178, Aubire Cedex, France
| | - P Nadel-Turonski
- Thomas Jefferson National Accelerator Facility, 12000 Jefferson Ave, Newport News, VA, 23606, USA
| | - N Nuruzzaman
- Hampton University, 100 E Queen St, Hampton, VA, 23668, USA
| | - R Paremuzyan
- Institut de Physique Nucléaire CNRS-IN2P3, 15 rue Georges Clémenceau, 91406, Orsay, France
| | - A Puckett
- Los Alamos National Laboratory, Los Alamos, NM, 87545, USA
| | - V Punjabi
- Norfolk State University, 700 Park Avenue, Norfolk, VA, 23504, USA
| | - Y Qiang
- Thomas Jefferson National Accelerator Facility, 12000 Jefferson Ave, Newport News, VA, 23606, USA
| | - A Rakhman
- Syracuse University, 900 South Crouse Ave., Syracuse, NY, 13244, USA
| | - M N H Rashad
- Old Dominion University, Norfolk, 5115 Hampton Blvd, Norfolk, VA, 23529, USA
| | - S Riordan
- Stony Brook University, 100 Nicolls Rd, Stony Brook, NY, 11794, USA
| | - J Roche
- Ohio University, 123 University Terrace, 1 Ohio University, Athens, OH, 45701, USA
| | - G Russo
- INFN/Sezione di Catania, Via S. Sofia, 62, 95125, Catania, Italy
| | - F Sabatié
- Irfu, CEA, Université Paris-Saclay, 91191, Gif-sur-Yvette, France
| | - K Saenboonruang
- University of Virginia, 382 McCormick Rd, Charlottesville, VA, 22904, USA
- Kasetsart University, 50 Thanon Ngam Wong Wan, Khwaeng Lat Yao, Khet Chatuchak, Krung Thep, Maha Nakhon, 10900, Thailand
| | - A Saha
- Thomas Jefferson National Accelerator Facility, 12000 Jefferson Ave, Newport News, VA, 23606, USA
| | - B Sawatzky
- Thomas Jefferson National Accelerator Facility, 12000 Jefferson Ave, Newport News, VA, 23606, USA
- Temple University, 1801 N Broad St, Philadelphia, PA, 19122, USA
| | - L Selvy
- Kent State University, 800 E Summit St, Kent, OH, 44240, USA
| | - A Shahinyan
- Yerevan Physics Institute, 2. Alikhanian Br. Street, Yerevan, 0036, Armenia
| | - S Sirca
- University of Ljubljana, Kongresni trg 12, 1000, Ljubljana, Slovenia
| | - P Solvignon
- Thomas Jefferson National Accelerator Facility, 12000 Jefferson Ave, Newport News, VA, 23606, USA
- University of New Hampshire, 105 Main St, Durham, NH, 03824, USA
| | - M L Sperduto
- INFN/Sezione di Catania, Via S. Sofia, 62, 95125, Catania, Italy
| | - R Subedi
- George Washington University, 2121 I St NW, Washington, DC, 20052, USA
| | - V Sulkosky
- Massachusetts Institute of Technology, 77 Massachusetts Ave, Cambridge, MA, 02139, USA
| | - C Sutera
- INFN/Sezione di Catania, Via S. Sofia, 62, 95125, Catania, Italy
| | - W A Tobias
- University of Virginia, 382 McCormick Rd, Charlottesville, VA, 22904, USA
| | - G M Urciuoli
- INFN/Sezione di Roma, Piazzale Aldo Moro 2, 00185, Roma, Italy
| | - D Wang
- University of Virginia, 382 McCormick Rd, Charlottesville, VA, 22904, USA
| | - B Wojtsekhowski
- Thomas Jefferson National Accelerator Facility, 12000 Jefferson Ave, Newport News, VA, 23606, USA
| | - H Yao
- Temple University, 1801 N Broad St, Philadelphia, PA, 19122, USA
| | - Z Ye
- University of Virginia, 382 McCormick Rd, Charlottesville, VA, 22904, USA
| | - X Zhan
- Argonne National Laboratory, 9700 Cass Ave, Lemont, IL, 60439, USA
| | - J Zhang
- Thomas Jefferson National Accelerator Facility, 12000 Jefferson Ave, Newport News, VA, 23606, USA
| | - B Zhao
- College of William and Mary, Department of Physics, P.O. Box 8795, Williamsburg, VA, 23187, USA
| | - Z Zhao
- University of Virginia, 382 McCormick Rd, Charlottesville, VA, 22904, USA
| | - X Zheng
- University of Virginia, 382 McCormick Rd, Charlottesville, VA, 22904, USA
| | - P Zhu
- University of Virginia, 382 McCormick Rd, Charlottesville, VA, 22904, USA
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3
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Camsonne A, Katramatou AT, Olson M, Acha A, Allada K, Anderson BD, Arrington J, Baldwin A, Chen JP, Choi S, Chudakov E, Cisbani E, Craver B, Decowski P, Dutta C, Folts E, Frullani S, Garibaldi F, Gilman R, Gomez J, Hahn B, Hansen JO, Higinbotham DW, Holmstrom T, Huang J, Iodice M, Jiang X, Kelleher A, Khrosinkova E, Kievsky A, Kuchina E, Kumbartzki G, Lee B, LeRose JJ, Lindgren RA, Lott G, Lu H, Marcucci LE, Margaziotis DJ, Markowitz P, Marrone S, Meekins D, Meziani ZE, Michaels R, Moffit B, Norum B, Petratos GG, Puckett A, Qian X, Rondon O, Saha A, Sawatzky B, Segal J, Shabestari M, Shahinyan A, Solvignon P, Sparveris N, Subedi RR, Suleiman R, Sulkosky V, Urciuoli GM, Viviani M, Wang Y, Wojtsekhowski BB, Yan X, Yao H, Zhang WM, Zheng X, Zhu L. JLab Measurements of the ^{3}He Form Factors at Large Momentum Transfers. Phys Rev Lett 2017; 119:162501. [PMID: 29099223 DOI: 10.1103/physrevlett.119.162501] [Citation(s) in RCA: 1] [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: 10/31/2016] [Indexed: 06/07/2023]
Abstract
The charge and magnetic form factors, F_{C} and F_{M}, respectively, of ^{3}He are extracted in the kinematic range 25 fm^{-2}≤Q^{2}≤61 fm^{-2} from elastic electron scattering by detecting ^{3}He recoil nuclei and scattered electrons in coincidence with the two High Resolution Spectrometers of the Hall A Facility at Jefferson Lab. The measurements find evidence for the existence of a second diffraction minimum for the magnetic form factor at Q^{2}=49.3 fm^{-2} and for the charge form factor at Q^{2}=62.0 fm^{-2}. Both minima are predicted to exist in the Q^{2} range accessible by this Jefferson Lab experiment. The data are in qualitative agreement with theoretical calculations based on realistic interactions and accurate methods to solve the three-body nuclear problem.
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Affiliation(s)
- A Camsonne
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | | | - M Olson
- St. Norbert College, De Pere, Wisconsin 54115, USA
| | - A Acha
- Florida International University, Miami, Florida 33199, USA
| | - K Allada
- University of Kentucky, Lexington, Kentucky 40506, USA
| | | | - J Arrington
- Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - A Baldwin
- Kent State University, Kent, Ohio 44242, USA
| | - J-P Chen
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - S Choi
- Seoul National University, Seoul 151-747, Korea
| | - E Chudakov
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - E Cisbani
- Istituto Nazionale di Fisica Nucleare, Sezione di Roma, 00185 Rome, Italy
- Istituto Superiore di Sanità, 00161 Rome, Italy
| | - B Craver
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - P Decowski
- Smith College, Northampton, Massachusetts 01063, USA
| | - C Dutta
- University of Kentucky, Lexington, Kentucky 40506, USA
| | - E Folts
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - S Frullani
- Istituto Nazionale di Fisica Nucleare, Sezione di Roma, 00185 Rome, Italy
- Istituto Superiore di Sanità, 00161 Rome, Italy
| | - F Garibaldi
- Istituto Nazionale di Fisica Nucleare, Sezione di Roma, 00185 Rome, Italy
- Istituto Superiore di Sanità, 00161 Rome, Italy
| | - R Gilman
- Rutgers, The State University of New Jersey, Piscataway, New Jersey 08855, USA
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - J Gomez
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - B Hahn
- College of William and Mary, Williamsburg, Virginia 23185, USA
| | - J-O Hansen
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - D W Higinbotham
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - T Holmstrom
- Longwood University, Farmville, Virginia 23909, USA
| | - J Huang
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - M Iodice
- Istituto Nazionale di Fisica Nucleare, Sezione di Roma Tre, 00146 Rome, Italy
| | - X Jiang
- Rutgers, The State University of New Jersey, Piscataway, New Jersey 08855, USA
| | - A Kelleher
- College of William and Mary, Williamsburg, Virginia 23185, USA
| | | | - A Kievsky
- Istituto Nazionale di Fisica Nucleare, Sezione di Pisa, 56127 Pisa, Italy
| | - E Kuchina
- Rutgers, The State University of New Jersey, Piscataway, New Jersey 08855, USA
| | - G Kumbartzki
- Rutgers, The State University of New Jersey, Piscataway, New Jersey 08855, USA
| | - B Lee
- Seoul National University, Seoul 151-747, Korea
| | - J J LeRose
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - R A Lindgren
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - G Lott
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - H Lu
- University of Science and Technology of China, Hefei, Anhui 230026, People's Republic of China
| | - L E Marcucci
- Istituto Nazionale di Fisica Nucleare, Sezione di Pisa, 56127 Pisa, Italy
- University of Pisa, 56127 Pisa, Italy
| | - D J Margaziotis
- California State University, Los Angeles, California 90032, USA
| | - P Markowitz
- Florida International University, Miami, Florida 33199, USA
| | - S Marrone
- Istituto Nazionale di Fisica Nucleare, Sezione di Bari and University of Bari, 70126 Bari, Italy
| | - D Meekins
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - Z-E Meziani
- Temple University, Philadelphia, Pennsylvania 19122, USA
| | - R Michaels
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - B Moffit
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - B Norum
- University of Virginia, Charlottesville, Virginia 22904, USA
| | | | - A Puckett
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - X Qian
- Duke University (TUNL), Durham, North Carolina 27708, USA
| | - O Rondon
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - A Saha
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - B Sawatzky
- Temple University, Philadelphia, Pennsylvania 19122, USA
| | - J Segal
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - M Shabestari
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - A Shahinyan
- Yerevan Physics Institute, Yerevan 375036, Armenia
| | - P Solvignon
- Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - N Sparveris
- Kent State University, Kent, Ohio 44242, USA
- Temple University, Philadelphia, Pennsylvania 19122, USA
| | - R R Subedi
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - R Suleiman
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - V Sulkosky
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - G M Urciuoli
- Istituto Nazionale di Fisica Nucleare, Sezione di Roma, 00185 Rome, Italy
| | - M Viviani
- Istituto Nazionale di Fisica Nucleare, Sezione di Pisa, 56127 Pisa, Italy
| | - Y Wang
- University of Illinois at Urbana Champagne, Urbana, Illinois 61801, USA
| | - B B Wojtsekhowski
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - X Yan
- Seoul National University, Seoul 151-747, Korea
| | - H Yao
- Temple University, Philadelphia, Pennsylvania 19122, USA
| | - W-M Zhang
- Kent State University, Kent, Ohio 44242, USA
| | - X Zheng
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - L Zhu
- University of Illinois at Urbana Champagne, Urbana, Illinois 61801, USA
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4
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Defurne M, Mazouz M, Ahmed Z, Albataineh H, Allada K, Aniol KA, Bellini V, Benali M, Boeglin W, Bertin P, Brossard M, Camsonne A, Canan M, Chandavar S, Chen C, Chen JP, de Jager CW, de Leo R, Desnault C, Deur A, El Fassi L, Ent R, Flay D, Friend M, Fuchey E, Frullani S, Garibaldi F, Gaskell D, Giusa A, Glamazdin O, Golge S, Gomez J, Hansen O, Higinbotham D, Holmstrom T, Horn T, Huang J, Huang M, Huber GM, Hyde CE, Iqbal S, Itard F, Kang H, Kang H, Kelleher A, Keppel C, Koirala S, Korover I, LeRose JJ, Lindgren R, Long E, Magne M, Mammei J, Margaziotis DJ, Markowitz P, Martí Jiménez-Argüello A, Meddi F, Meekins D, Michaels R, Mihovilovic M, Muangma N, Muñoz Camacho C, Nadel-Turonski P, Nuruzzaman N, Paremuzyan R, Puckett A, Punjabi V, Qiang Y, Rakhman A, Rashad MNH, Riordan S, Roche J, Russo G, Sabatié F, Saenboonruang K, Saha A, Sawatzky B, Selvy L, Shahinyan A, Sirca S, Solvignon P, Sperduto ML, Subedi R, Sulkosky V, Sutera C, Tobias WA, Urciuoli GM, Wang D, Wojtsekhowski B, Yao H, Ye Z, Zana L, Zhan X, Zhang J, Zhao B, Zhao Z, Zheng X, Zhu P. Rosenbluth Separation of the π^{0} Electroproduction Cross Section. Phys Rev Lett 2016; 117:262001. [PMID: 28059549 DOI: 10.1103/physrevlett.117.262001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/27/2016] [Indexed: 06/06/2023]
Abstract
We present deeply virtual π^{0} electroproduction cross-section measurements at x_{B}=0.36 and three different Q^{2} values ranging from 1.5 to 2 GeV^{2}, obtained from Jefferson Lab Hall A experiment E07-007. The Rosenbluth technique is used to separate the longitudinal and transverse responses. Results demonstrate that the cross section is dominated by its transverse component and, thus, is far from the asymptotic limit predicted by perturbative quantum chromodynamics. Nonetheless, an indication of a nonzero longitudinal contribution is provided by the measured interference term σ_{LT}. Results are compared with several models based on the leading-twist approach of generalized parton distributions (GPDs). In particular, a fair agreement is obtained with models in which the scattering amplitude includes convolution terms of chiral-odd (transversity) GPDs of the nucleon with the twist-3 pion distribution amplitude. This experiment, together with previous extensive unseparated measurements, provides strong support to the exciting idea that transversity GPDs can be accessed via neutral pion electroproduction in the high-Q^{2} regime.
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Affiliation(s)
- M Defurne
- Irfu, CEA, Université Paris-Saclay, 91191 Gif-sur-Yvette, France
| | - M Mazouz
- Faculté des sciences de Monastir, 5000 Tunisia
| | - Z Ahmed
- Syracuse University, Syracuse, New York 13244, USA
| | - H Albataineh
- Texas A&M University-Kingsville, Kingsville, Texas 78363, USA
| | - K Allada
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - K A Aniol
- California State University, Los Angeles, Los Angeles, California 90032, USA
| | - V Bellini
- INFN/Sezione di Catania, 95125 Catania, Italy
| | - M Benali
- Clermont Université, Université Blaise Pascal, CNRS/IN2P3, Laboratoire de physique corpusculaire, FR-63000 Clermont-Ferrand, France
| | - W Boeglin
- Florida International University, Miami, Florida 33199, USA
| | - P Bertin
- Clermont Université, Université Blaise Pascal, CNRS/IN2P3, Laboratoire de physique corpusculaire, FR-63000 Clermont-Ferrand, France
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - M Brossard
- Clermont Université, Université Blaise Pascal, CNRS/IN2P3, Laboratoire de physique corpusculaire, FR-63000 Clermont-Ferrand, France
| | - A Camsonne
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - M Canan
- Old Dominion University, Norfolk, Virginia 23529, USA
| | | | - C Chen
- Hampton University, Hampton, Virginia 23668, USA
| | - J-P Chen
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - C W de Jager
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - R de Leo
- Università di Bari, 70121 Bari, Italy
| | - C Desnault
- Institut de Physique Nucléaire CNRS-IN2P3, Orsay 91400, France
| | - A Deur
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - L El Fassi
- Rutgers, The State University of New Jersey, Piscataway, New Jersey 08854, USA
| | - R Ent
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - D Flay
- Temple University, Philadelphia, Pennsylvania 19122, USA
| | - M Friend
- Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA
| | - E Fuchey
- Clermont Université, Université Blaise Pascal, CNRS/IN2P3, Laboratoire de physique corpusculaire, FR-63000 Clermont-Ferrand, France
| | | | | | - D Gaskell
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - A Giusa
- INFN/Sezione di Catania, 95125 Catania, Italy
| | - O Glamazdin
- Kharkov Institute of Physics and Technology, Kharkov 61108, Ukraine
| | - S Golge
- North Carolina Central University, Durham, North Carolina 27701, USA
| | - J Gomez
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - O Hansen
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - D Higinbotham
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - T Holmstrom
- Longwood University, Farmville, Virginia 23909, USA
| | - T Horn
- The Catholic University of America, Washington, DC 20064, USA
| | - J Huang
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - M Huang
- Duke University, Durham, North Carolina 27708, USA
| | - G M Huber
- University of Regina, Regina, Saskatchewan S4S 0A2, Canada
| | - C E Hyde
- Clermont Université, Université Blaise Pascal, CNRS/IN2P3, Laboratoire de physique corpusculaire, FR-63000 Clermont-Ferrand, France
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - S Iqbal
- California State University, Los Angeles, Los Angeles, California 90032, USA
| | - F Itard
- Clermont Université, Université Blaise Pascal, CNRS/IN2P3, Laboratoire de physique corpusculaire, FR-63000 Clermont-Ferrand, France
| | - Ho Kang
- Seoul National University, Seoul 151-747, South Korea
| | - Hy Kang
- Seoul National University, Seoul 151-747, South Korea
| | - A Kelleher
- College of William and Mary, Williamsburg, Virginia 23187, USA
| | - C Keppel
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - S Koirala
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - I Korover
- Tel Aviv University, Tel Aviv 69978, Israel
| | - J J LeRose
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - R Lindgren
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - E Long
- Kent State University, Kent, Ohio 44242, USA
| | - M Magne
- Clermont Université, Université Blaise Pascal, CNRS/IN2P3, Laboratoire de physique corpusculaire, FR-63000 Clermont-Ferrand, France
| | - J Mammei
- University of Massachusetts, Amherst, Massachusetts 01003, USA
| | - D J Margaziotis
- California State University, Los Angeles, Los Angeles, California 90032, USA
| | - P Markowitz
- Florida International University, Miami, Florida 33199, USA
| | - A Martí Jiménez-Argüello
- Institut de Physique Nucléaire CNRS-IN2P3, Orsay 91400, France
- Facultad de Física, Universidad de Valencia, Valencia 46071, Spain
| | - F Meddi
- INFN/Sezione Sanità, 00161 Roma, Italy
| | - D Meekins
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - R Michaels
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | | | - N Muangma
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - C Muñoz Camacho
- Clermont Université, Université Blaise Pascal, CNRS/IN2P3, Laboratoire de physique corpusculaire, FR-63000 Clermont-Ferrand, France
- Institut de Physique Nucléaire CNRS-IN2P3, Orsay 91400, France
| | - P Nadel-Turonski
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - N Nuruzzaman
- Hampton University, Hampton, Virginia 23668, USA
| | - R Paremuzyan
- Institut de Physique Nucléaire CNRS-IN2P3, Orsay 91400, France
| | - A Puckett
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - V Punjabi
- Norfolk State University, Norfolk, Virginia 23529, USA
| | - Y Qiang
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - A Rakhman
- Syracuse University, Syracuse, New York 13244, USA
| | - M N H Rashad
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - S Riordan
- Stony Brook University, Stony Brook, New York 11794, USA
| | - J Roche
- Ohio University, Athens, Ohio 45701, USA
| | - G Russo
- INFN/Sezione di Catania, 95125 Catania, Italy
| | - F Sabatié
- Irfu, CEA, Université Paris-Saclay, 91191 Gif-sur-Yvette, France
| | - K Saenboonruang
- University of Virginia, Charlottesville, Virginia 22904, USA
- Kasetsart University, Chatuchak, Bangkok, 10900, Thailand
| | - A Saha
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - B Sawatzky
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
- Temple University, Philadelphia, Pennsylvania 19122, USA
| | - L Selvy
- Kent State University, Kent, Ohio 44242, USA
| | - A Shahinyan
- Yerevan Physics Institute, Yerevan 375036, Armenia
| | - S Sirca
- University of Ljubljana, 1000 Ljubljana, Slovenia
| | - P Solvignon
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | | | - R Subedi
- George Washington University, Washington, DC 20052, USA
| | - V Sulkosky
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - C Sutera
- INFN/Sezione di Catania, 95125 Catania, Italy
| | - W A Tobias
- University of Virginia, Charlottesville, Virginia 22904, USA
| | | | - D Wang
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - B Wojtsekhowski
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - H Yao
- Temple University, Philadelphia, Pennsylvania 19122, USA
| | - Z Ye
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - L Zana
- Syracuse University, Syracuse, New York 13244, USA
| | - X Zhan
- Argonne National Laboratory, Lemont, Illinois 60439, USA
| | - J Zhang
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - B Zhao
- College of William and Mary, Williamsburg, Virginia 23187, USA
| | - Z Zhao
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - X Zheng
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - P Zhu
- University of Virginia, Charlottesville, Virginia 22904, USA
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5
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Posik M, Flay D, Parno DS, Allada K, Armstrong W, Averett T, Benmokhtar F, Bertozzi W, Camsonne A, Canan M, Cates GD, Chen C, Chen JP, Choi S, Chudakov E, Cusanno F, Dalton MM, Deconinck W, de Jager CW, Deng X, Deur A, Dutta C, El Fassi L, Franklin GB, Friend M, Gao H, Garibaldi F, Gilad S, Gilman R, Glamazdin O, Golge S, Gomez J, Guo L, Hansen O, Higinbotham DW, Holmstrom T, Huang J, Hyde C, Ibrahim HF, Jiang X, Jin G, Katich J, Kelleher A, Kolarkar A, Korsch W, Kumbartzki G, LeRose JJ, Lindgren R, Liyanage N, Long E, Lukhanin A, Mamyan V, McNulty D, Meziani ZE, Michaels R, Mihovilovič M, Moffit B, Muangma N, Nanda S, Narayan A, Nelyubin V, Norum B, Oh Y, Peng JC, Qian X, Qiang Y, Rakhman A, Riordan S, Saha A, Sawatzky B, Shabestari MH, Shahinyan A, Širca S, Solvignon P, Subedi R, Sulkosky V, Tobias WA, Troth W, Wang D, Wang Y, Wojtsekhowski B, Yan X, Yao H, Ye Y, Ye Z, Yuan L, Zhan X, Zhang Y, Zhang YW, Zhao B, Zheng X. Precision measurement of the neutron twist-3 matrix element d(2)(n): probing color forces. Phys Rev Lett 2014; 113:022002. [PMID: 25062166 DOI: 10.1103/physrevlett.113.022002] [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: 04/15/2014] [Indexed: 06/03/2023]
Abstract
Double-spin asymmetries and absolute cross sections were measured at large Bjorken x (0.25≤x≤0.90), in both the deep-inelastic and resonance regions, by scattering longitudinally polarized electrons at beam energies of 4.7 and 5.9 GeV from a transversely and longitudinally polarized (3)He target. In this dedicated experiment, the spin structure function g(2)((3)He) was determined with precision at large x, and the neutron twist-3 matrix element d(2)(n) was measured at ⟨Q(2)⟩ of 3.21 and 4.32 GeV(2)/c(2), with an absolute precision of about 10(-5). Our results are found to be in agreement with lattice QCD calculations and resolve the disagreement found with previous data at ⟨Q(2)⟩=5 GeV(2)/c(2). Combining d(2)(n) and a newly extracted twist-4 matrix element f(2)(n), the average neutron color electric and magnetic forces were extracted and found to be of opposite sign and about 30 MeV/fm in magnitude.
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Affiliation(s)
- M Posik
- Temple University, Philadelphia, Pennsylvania 19122, USA
| | - D Flay
- Temple University, Philadelphia, Pennsylvania 19122, USA
| | - D S Parno
- Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA and Center for Experimental Nuclear Physics and Astrophysics, University of Washington, Seattle, Washington 98195, USA
| | - K Allada
- University of Kentucky, Lexington, Kentucky 40506, USA
| | - W Armstrong
- Temple University, Philadelphia, Pennsylvania 19122, USA
| | - T Averett
- College of William and Mary, Williamsburg, Virginia 23187, USA
| | - F Benmokhtar
- Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA and Duquesne University, Pittsburgh, Pennsylvania 15282, USA
| | - W Bertozzi
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - A Camsonne
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - M Canan
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - G D Cates
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - C Chen
- Hampton University, Hampton, Virginia 23187, USA
| | - J-P Chen
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - S Choi
- Seoul National University, Seoul 151-742, South Korea
| | - E Chudakov
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - F Cusanno
- INFN, Sezione di Roma, I-00161 Rome, Italy and Istituto Superiore di Sanità, I-00161 Rome, Italy
| | - M M Dalton
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - W Deconinck
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - C W de Jager
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - X Deng
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - A Deur
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - C Dutta
- University of Kentucky, Lexington, Kentucky 40506, USA
| | - L El Fassi
- Old Dominion University, Norfolk, Virginia 23529, USA and Rutgers, The State University of New Jersey, Piscataway, New Jersey 08855, USA
| | - G B Franklin
- Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA
| | - M Friend
- Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA
| | - H Gao
- Duke University, Durham, North Carolina 27708, USA
| | | | - S Gilad
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - R Gilman
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA and Rutgers, The State University of New Jersey, Piscataway, New Jersey 08855, USA
| | - O Glamazdin
- Kharkov Institute of Physics and Technology, Kharkov 61108, Ukraine
| | - S Golge
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - J Gomez
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - L Guo
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - O Hansen
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - D W Higinbotham
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - T Holmstrom
- Longwood University, Farmville, Virginia 23909, USA
| | - J Huang
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - C Hyde
- Old Dominion University, Norfolk, Virginia 23529, USA and Université Blaise Pascal/IN2P3, F-63177 Aubière, France
| | | | - X Jiang
- Rutgers, The State University of New Jersey, Piscataway, New Jersey 08855, USA and Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - G Jin
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - J Katich
- College of William and Mary, Williamsburg, Virginia 23187, USA
| | - A Kelleher
- College of William and Mary, Williamsburg, Virginia 23187, USA
| | - A Kolarkar
- University of Kentucky, Lexington, Kentucky 40506, USA
| | - W Korsch
- University of Kentucky, Lexington, Kentucky 40506, USA
| | - G Kumbartzki
- Rutgers, The State University of New Jersey, Piscataway, New Jersey 08855, USA
| | - J J LeRose
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - R Lindgren
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - N Liyanage
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - E Long
- Kent State University, Kent, Ohio 44242, USA
| | - A Lukhanin
- Temple University, Philadelphia, Pennsylvania 19122, USA
| | - V Mamyan
- Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA
| | - D McNulty
- University of Massachusetts, Amherst, Massachusetts 01003, USA
| | - Z-E Meziani
- Temple University, Philadelphia, Pennsylvania 19122, USA
| | - R Michaels
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | | | - B Moffit
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA and Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - N Muangma
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - S Nanda
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - A Narayan
- Mississippi State University, Mississippi 39762, USA
| | - V Nelyubin
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - B Norum
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - Y Oh
- Seoul National University, Seoul 151-742, South Korea
| | - J C Peng
- University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA
| | - X Qian
- Duke University, Durham, North Carolina 27708, USA and Kellogg Radiation Laboratory, California Institute of Technology, Pasadena, California 91125, USA
| | - Y Qiang
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA and Duke University, Durham, North Carolina 27708, USA
| | - A Rakhman
- Syracuse University, Syracuse, New York 13244, USA
| | - S Riordan
- University of Virginia, Charlottesville, Virginia 22904, USA and University of Massachusetts, Amherst, Massachusetts 01003, USA
| | - A Saha
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - B Sawatzky
- Temple University, Philadelphia, Pennsylvania 19122, USA and Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - M H Shabestari
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - A Shahinyan
- Yerevan Physics Institute, Yerevan 375036, Armenia
| | - S Širca
- Jožef Stefan Institute, SI-1000 Ljubljana, Slovenia and University of Ljubljana, SI-1000 Ljubljana, Slovenia
| | - P Solvignon
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA and Argonne National Lab, Argonne, Illinois 60439, USA
| | - R Subedi
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - V Sulkosky
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA and Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - W A Tobias
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - W Troth
- Longwood University, Farmville, Virginia 23909, USA
| | - D Wang
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - Y Wang
- University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA
| | - B Wojtsekhowski
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - X Yan
- University of Science and Technology of China, Hefei 230026, People's Republic of China
| | - H Yao
- Temple University, Philadelphia, Pennsylvania 19122, USA and College of William and Mary, Williamsburg, Virginia 23187, USA
| | - Y Ye
- University of Science and Technology of China, Hefei 230026, People's Republic of China
| | - Z Ye
- Hampton University, Hampton, Virginia 23187, USA
| | - L Yuan
- Hampton University, Hampton, Virginia 23187, USA
| | - X Zhan
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - Y Zhang
- Lanzhou University, Lanzhou 730000, Gansu, People's Republic of China
| | - Y-W Zhang
- Rutgers, The State University of New Jersey, Piscataway, New Jersey 08855, USA and Lanzhou University, Lanzhou 730000, Gansu, People's Republic of China
| | - B Zhao
- College of William and Mary, Williamsburg, Virginia 23187, USA
| | - X Zheng
- University of Virginia, Charlottesville, Virginia 22904, USA
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6
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Katich J, Qian X, Zhao YX, Allada K, Aniol K, Annand JRM, Averett T, Benmokhtar F, Bertozzi W, Bradshaw PC, Bosted P, Camsonne A, Canan M, Cates GD, Chen C, Chen JP, Chen W, Chirapatpimol K, Chudakov E, Cisbani E, Cornejo JC, Cusanno F, Dalton MM, Deconinck W, de Jager CW, De Leo R, Deng X, Deur A, Ding H, Dolph PAM, Dutta C, Dutta D, El Fassi L, Frullani S, Gao H, Garibaldi F, Gaskell D, Gilad S, Gilman R, Glamazdin O, Golge S, Guo L, Hamilton D, Hansen O, Higinbotham DW, Holmstrom T, Huang J, Huang M, Ibrahim HF, Iodice M, Jiang X, Jin G, Jones MK, Kelleher A, Kim W, Kolarkar A, Korsch W, LeRose JJ, Li X, Li Y, Lindgren R, Liyanage N, Long E, Lu HJ, Margaziotis DJ, Markowitz P, Marrone S, McNulty D, Meziani ZE, Michaels R, Moffit B, Muñoz Camacho C, Nanda S, Narayan A, Nelyubin V, Norum B, Oh Y, Osipenko M, Parno D, Peng JC, Phillips SK, Posik M, Puckett AJR, Qiang Y, Rakhman A, Ransome RD, Riordan S, Saha A, Sawatzky B, Schulte E, Shahinyan A, Shabestari MH, Širca S, Stepanyan S, Subedi R, Sulkosky V, Tang LG, Tobias A, Urciuoli GM, Vilardi I, Wang K, Wang Y, Wojtsekhowski B, Yan X, Yao H, Ye Y, Ye Z, Yuan L, Zhan X, Zhang Y, Zhang YW, Zhao B, Zheng X, Zhu L, Zhu X, Zong X. Measurement of the target-normal single-spin asymmetry in deep-inelastic scattering from the reaction (3)He(↑)(e,e')X. Phys Rev Lett 2014; 113:022502. [PMID: 25062169 DOI: 10.1103/physrevlett.113.022502] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/07/2013] [Indexed: 06/03/2023]
Abstract
We report the first measurement of the target-normal single-spin asymmetry in deep-inelastic scattering from the inclusive reaction 3)He(↑)(e,e')X on a polarized (3)He gas target. Assuming time-reversal invariance, this asymmetry is strictly zero in the Born approximation but can be nonzero if two-photon-exchange contributions are included. The experiment, conducted at Jefferson Lab using a 5.89 GeV electron beam, covers a range of 1.7<W<2.9 GeV, 1.0<Q(2)<4.0 GeV(2) and 0.16<x<0.65. Neutron asymmetries were extracted using the effective nucleon polarization and measured proton-to-(3)He cross-section ratios. The measured neutron asymmetries are negative with an average value of (-1.09±0.38)×10(-2) for invariant mass W>2 GeV, which is nonzero at the 2.89σ level. Our measured asymmetry agrees both in sign and magnitude with a two-photon-exchange model prediction that uses input from the Sivers transverse momentum distribution obtained from semi-inclusive deep-inelastic scattering.
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Affiliation(s)
- J Katich
- College of William and Mary, Williamsburg, Virginia 23187, USA and University of Colorado, Boulder, Colorado 80309, USA
| | - X Qian
- Duke University, Durham, North Carolina 27708, USA and Kellogg Radiation Laboratory, California Institute of Technology, Pasadena, California 91125, USA and Brookhaven National Laboratory, Upton, New York 11973, USA
| | - Y X Zhao
- University of Science and Technology of China, Hefei 230026, People's Republic of China
| | - K Allada
- University of Kentucky, Lexington, Kentucky 40506, USA
| | - K Aniol
- California State University, Los Angeles, Los Angeles, California 90032, USA
| | - J R M Annand
- University of Glasgow, Glasgow G12 8QQ, Scotland, United Kingdom
| | - T Averett
- College of William and Mary, Williamsburg, Virginia 23187, USA
| | - F Benmokhtar
- Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA
| | - W Bertozzi
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - P C Bradshaw
- College of William and Mary, Williamsburg, Virginia 23187, USA
| | - P Bosted
- College of William and Mary, Williamsburg, Virginia 23187, USA
| | - A Camsonne
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - M Canan
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - G D Cates
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - C Chen
- Hampton University, Hampton, Virginia 23187, USA
| | - J-P Chen
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - W Chen
- Duke University, Durham, North Carolina 27708, USA
| | - K Chirapatpimol
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - E Chudakov
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - E Cisbani
- INFN, Sezione di Roma, I-00161 Rome, Italy and Istituto Superiore di Sanità, I-00161 Rome, Italy
| | - J C Cornejo
- California State University, Los Angeles, Los Angeles, California 90032, USA
| | - F Cusanno
- INFN, Sezione di Roma, I-00161 Rome, Italy and Istituto Superiore di Sanità, I-00161 Rome, Italy
| | - M M Dalton
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - W Deconinck
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - C W de Jager
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA and University of Virginia, Charlottesville, Virginia 22904, USA
| | - R De Leo
- INFN, Sezione di Bari and University of Bari, I-70126 Bari, Italy
| | - X Deng
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - A Deur
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - H Ding
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - P A M Dolph
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - C Dutta
- University of Kentucky, Lexington, Kentucky 40506, USA
| | - D Dutta
- Mississippi State University, Mississippi State, Minnesota 39762, USA
| | - L El Fassi
- Old Dominion University, Norfolk, Virginia 23529, USA and Rutgers, The State University of New Jersey, Piscataway, New Jersey 08855, USA
| | - S Frullani
- INFN, Sezione di Roma, I-00161 Rome, Italy and Istituto Superiore di Sanità, I-00161 Rome, Italy
| | - H Gao
- Duke University, Durham, North Carolina 27708, USA
| | - F Garibaldi
- INFN, Sezione di Roma, I-00161 Rome, Italy and Istituto Superiore di Sanità, I-00161 Rome, Italy
| | - D Gaskell
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - S Gilad
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - R Gilman
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA and Rutgers, The State University of New Jersey, Piscataway, New Jersey 08855, USA
| | - O Glamazdin
- Kharkov Institute of Physics and Technology, Kharkov 61108, Ukraine
| | - S Golge
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - L Guo
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - D Hamilton
- University of Glasgow, Glasgow G12 8QQ, Scotland, United Kingdom
| | - O Hansen
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - D W Higinbotham
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - T Holmstrom
- Longwood University, Farmville, Virginia 23909, USA
| | - J Huang
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - M Huang
- Duke University, Durham, North Carolina 27708, USA
| | | | - M Iodice
- INFN, Sezione di Roma3, I-00146 Rome, Italy
| | - X Jiang
- Rutgers, The State University of New Jersey, Piscataway, New Jersey 08855, USA and Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - G Jin
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - M K Jones
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - A Kelleher
- College of William and Mary, Williamsburg, Virginia 23187, USA
| | - W Kim
- Kyungpook National University, Taegu 702-701, Republic of Korea
| | - A Kolarkar
- University of Kentucky, Lexington, Kentucky 40506, USA
| | - W Korsch
- University of Kentucky, Lexington, Kentucky 40506, USA
| | - J J LeRose
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - X Li
- China Institute of Atomic Energy, Beijing, People's Republic of China
| | - Y Li
- China Institute of Atomic Energy, Beijing, People's Republic of China
| | - R Lindgren
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - N Liyanage
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - E Long
- University of New Hampshire, Durham, New Hampshire 03824, USA
| | - H-J Lu
- University of Science and Technology of China, Hefei 230026, People's Republic of China
| | - D J Margaziotis
- California State University, Los Angeles, Los Angeles, California 90032, USA
| | - P Markowitz
- Florida International University, Miami, Florida 33199, USA
| | - S Marrone
- INFN, Sezione di Bari and University of Bari, I-70126 Bari, Italy
| | - D McNulty
- University of Massachusetts, Amherst, Massachusetts 01003, USA
| | - Z-E Meziani
- Temple University, Philadelphia, Pennsylvania 19122, USA
| | - R Michaels
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - B Moffit
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA and Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | | | - S Nanda
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - A Narayan
- Mississippi State University, Mississippi State, Minnesota 39762, USA
| | - V Nelyubin
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - B Norum
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - Y Oh
- Seoul National University, Seoul, 151-747, Republic of Korea
| | - M Osipenko
- INFN, Sezione di Genova, I-16146 Genova, Italy
| | - D Parno
- Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA
| | - J C Peng
- University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA
| | - S K Phillips
- University of New Hampshire, Durham, New Hampshire 03824, USA
| | - M Posik
- Temple University, Philadelphia, Pennsylvania 19122, USA
| | - A J R Puckett
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA and Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - Y Qiang
- Duke University, Durham, North Carolina 27708, USA and Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - A Rakhman
- Syracuse University, Syracuse, New York 13244, USA
| | - R D Ransome
- Rutgers, The State University of New Jersey, Piscataway, New Jersey 08855, USA
| | - S Riordan
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - A Saha
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - B Sawatzky
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA and Temple University, Philadelphia, Pennsylvania 19122, USA
| | - E Schulte
- Rutgers, The State University of New Jersey, Piscataway, New Jersey 08855, USA
| | - A Shahinyan
- Yerevan Physics Institute, Yerevan 375036, Armenia
| | - M H Shabestari
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - S Širca
- University of Ljubljana, SI-1000 Ljubljana, Slovenia
| | - S Stepanyan
- Kyungpook National University, Daegu 702-701, Republic of Korea
| | - R Subedi
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - V Sulkosky
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA and Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - L-G Tang
- Hampton University, Hampton, Virginia 23187, USA
| | - A Tobias
- University of Virginia, Charlottesville, Virginia 22904, USA
| | | | - I Vilardi
- INFN, Sezione di Bari and University of Bari, I-70126 Bari, Italy
| | - K Wang
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - Y Wang
- University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA
| | - B Wojtsekhowski
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - X Yan
- University of Science and Technology of China, Hefei 230026, People's Republic of China
| | - H Yao
- Temple University, Philadelphia, Pennsylvania 19122, USA
| | - Y Ye
- University of Science and Technology of China, Hefei 230026, People's Republic of China
| | - Z Ye
- Hampton University, Hampton, Virginia 23187, USA
| | - L Yuan
- Hampton University, Hampton, Virginia 23187, USA
| | - X Zhan
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - Y Zhang
- Lanzhou University, Lanzhou 730000, Gansu, People's Republic of China
| | - Y-W Zhang
- Lanzhou University, Lanzhou 730000, Gansu, People's Republic of China
| | - B Zhao
- College of William and Mary, Williamsburg, Virginia 23187, USA
| | - X Zheng
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - L Zhu
- Hampton University, Hampton, Virginia 23187, USA and University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA
| | - X Zhu
- Duke University, Durham, North Carolina 27708, USA
| | - X Zong
- Duke University, Durham, North Carolina 27708, USA
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7
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Camsonne A, Katramatou AT, Olson M, Sparveris N, Acha A, Allada K, Anderson BD, Arrington J, Baldwin A, Chen JP, Choi S, Chudakov E, Cisbani E, Craver B, Decowski P, Dutta C, Folts E, Frullani S, Garibaldi F, Gilman R, Gomez J, Hahn B, Hansen JO, Higinbotham DW, Holmstrom T, Huang J, Iodice M, Jiang X, Kelleher A, Khrosinkova E, Kievsky A, Kuchina E, Kumbartzki G, Lee B, LeRose JJ, Lindgren RA, Lott G, Lu H, Marcucci LE, Margaziotis DJ, Markowitz P, Marrone S, Meekins D, Meziani ZE, Michaels R, Moffit B, Norum B, Petratos GG, Puckett A, Qian X, Rondon O, Saha A, Sawatzky B, Segal J, Shabestari M, Shahinyan A, Solvignon P, Subedi RR, Suleiman R, Sulkosky V, Urciuoli GM, Viviani M, Wang Y, Wojtsekhowski BB, Yan X, Yao H, Zhang WM, Zheng X, Zhu L. JLab measurement of the 4He charge form factor at large momentum transfers. Phys Rev Lett 2014; 112:132503. [PMID: 24745410 DOI: 10.1103/physrevlett.112.132503] [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: 09/24/2013] [Indexed: 06/03/2023]
Abstract
The charge form factor of 4He has been extracted in the range 29 fm(-2) ≤ Q2 ≤ 77 fm(-2) from elastic electron scattering, detecting 4He recoil nuclei and electrons in coincidence with the high resolution spectrometers of the Hall A Facility of Jefferson Lab. The measurements have uncovered a second diffraction minimum for the form factor, which was predicted in the Q2 range of this experiment. The data are in qualitative agreement with theoretical calculations based on realistic interactions and accurate methods to solve the few-body problem.
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Affiliation(s)
- A Camsonne
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | | | - M Olson
- St. Norbert College, De Pere, Wisconsin 54115, USA
| | - N Sparveris
- Kent State University, Kent, Ohio 44242, USA and Temple University, Philadelphia, Pennsylvania 19122, USA
| | - A Acha
- Florida International University, Miami, Florida 33199, USA
| | - K Allada
- University of Kentucky, Lexington, Kentucky 40506, USA
| | | | - J Arrington
- Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - A Baldwin
- Kent State University, Kent, Ohio 44242, USA
| | - J-P Chen
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - S Choi
- Seoul National University, Seoul 151-747, Korea
| | - E Chudakov
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - E Cisbani
- Istituto Nazionale di Fisica Nucleare, Sezione di Roma, 00185 Rome, Italy and Istituto Superiore di Sanitá, 00161 Rome, Italy
| | - B Craver
- University of Virginia, Charlottesville, Virginia 22901, USA
| | - P Decowski
- Smith College, Northampton, Massachusetts 01063, USA
| | - C Dutta
- University of Kentucky, Lexington, Kentucky 40506, USA
| | - E Folts
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - S Frullani
- Istituto Nazionale di Fisica Nucleare, Sezione di Roma, 00185 Rome, Italy and Istituto Superiore di Sanitá, 00161 Rome, Italy
| | - F Garibaldi
- Istituto Nazionale di Fisica Nucleare, Sezione di Roma, 00185 Rome, Italy and Istituto Superiore di Sanitá, 00161 Rome, Italy
| | - R Gilman
- Rutgers, The State University of New Jersey, Piscataway, New Jersey 08855, USA and Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - J Gomez
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - B Hahn
- College of William and Mary, Williamsburg, Virginia 23185, USA
| | - J-O Hansen
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - D W Higinbotham
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - T Holmstrom
- Longwood University, Farmville, Virginia 23909, USA
| | - J Huang
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - M Iodice
- Istituto Nazionale di Fisica Nucleare, Sezione di Roma Tre, 00146 Rome, Italy
| | - X Jiang
- Rutgers, The State University of New Jersey, Piscataway, New Jersey 08855, USA
| | - A Kelleher
- College of William and Mary, Williamsburg, Virginia 23185, USA
| | | | - A Kievsky
- Istituto Nazionale di Fisica Nucleare, Sezione di Pisa, 56127 Pisa, Italy
| | - E Kuchina
- Rutgers, The State University of New Jersey, Piscataway, New Jersey 08855, USA
| | - G Kumbartzki
- Rutgers, The State University of New Jersey, Piscataway, New Jersey 08855, USA
| | - B Lee
- Seoul National University, Seoul 151-747, Korea
| | - J J LeRose
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - R A Lindgren
- University of Virginia, Charlottesville, Virginia 22901, USA
| | - G Lott
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - H Lu
- University of Science and Technology of China, Hefei, Anhui 230026, People's Republic of China
| | - L E Marcucci
- Istituto Nazionale di Fisica Nucleare, Sezione di Pisa, 56127 Pisa, Italy and University of Pisa, 56127 Pisa, Italy
| | - D J Margaziotis
- California State University, Los Angeles, California 90032, USA
| | - P Markowitz
- Florida International University, Miami, Florida 33199, USA
| | - S Marrone
- Istituto Nazionale di Fisica Nucleare, Sezione di Bari and University of Bari, 70126 Bari, Italy
| | - D Meekins
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - Z-E Meziani
- Temple University, Philadelphia, Pennsylvania 19122, USA
| | - R Michaels
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - B Moffit
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - B Norum
- University of Virginia, Charlottesville, Virginia 22901, USA
| | | | - A Puckett
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - X Qian
- Duke University (TUNL), Durham, North Carolina 27708, USA
| | - O Rondon
- University of Virginia, Charlottesville, Virginia 22901, USA
| | - A Saha
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - B Sawatzky
- Temple University, Philadelphia, Pennsylvania 19122, USA
| | - J Segal
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - M Shabestari
- University of Virginia, Charlottesville, Virginia 22901, USA
| | - A Shahinyan
- Yerevan Physics Institute, Yerevan 375036, Armenia
| | - P Solvignon
- Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - R R Subedi
- University of Virginia, Charlottesville, Virginia 22901, USA
| | - R Suleiman
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - V Sulkosky
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - G M Urciuoli
- Istituto Nazionale di Fisica Nucleare, Sezione di Roma, 00185 Rome, Italy
| | - M Viviani
- Istituto Nazionale di Fisica Nucleare, Sezione di Pisa, 56127 Pisa, Italy
| | - Y Wang
- University of Illinois at Urbana Champagne, Urbana, Illinois 61801, USA
| | - B B Wojtsekhowski
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - X Yan
- Seoul National University, Seoul 151-747, Korea
| | - H Yao
- Temple University, Philadelphia, Pennsylvania 19122, USA
| | - W-M Zhang
- Kent State University, Kent, Ohio 44242, USA
| | - X Zheng
- University of Virginia, Charlottesville, Virginia 22901, USA
| | - L Zhu
- University of Illinois at Urbana Champagne, Urbana, Illinois 61801, USA
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8
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Wang D, Pan K, Subedi R, Deng X, Ahmed Z, Allada K, Aniol KA, Armstrong DS, Arrington J, Bellini V, Beminiwattha R, Benesch J, Benmokhtar F, Camsonne A, Canan M, Cates GD, Chen JP, Chudakov E, Cisbani E, Dalton MM, de Jager CW, De Leo R, Deconinck W, Deur A, Dutta C, El Fassi L, Flay D, Franklin GB, Friend M, Frullani S, Garibaldi F, Giusa A, Glamazdin A, Golge S, Grimm K, Hafidi K, Hansen O, Higinbotham DW, Holmes R, Holmstrom T, Holt RJ, Huang J, Hyde CE, Jen CM, Jones D, Kang H, King P, Kowalski S, Kumar KS, Lee JH, LeRose JJ, Liyanage N, Long E, McNulty D, Margaziotis DJ, Meddi F, Meekins DG, Mercado L, Meziani ZE, Michaels R, Mihovilovic M, Muangma N, Myers KE, Nanda S, Narayan A, Nelyubin V, Oh Y, Parno D, Paschke KD, Phillips SK, Qian X, Qiang Y, Quinn B, Rakhman A, Reimer PE, Rider K, Riordan S, Roche J, Rubin J, Russo G, Saenboonruang K, Saha A, Sawatzky B, Shahinyan A, Silwal R, Sirca S, Souder PA, Suleiman R, Sulkosky V, Sutera CM, Tobias WA, Urciuoli GM, Waidyawansa B, Wojtsekhowski B, Ye L, Zhao B, Zheng X. Measurements of parity-violating asymmetries in electron-deuteron scattering in the nucleon resonance region. Phys Rev Lett 2013; 111:082501. [PMID: 24016222 DOI: 10.1103/physrevlett.111.082501] [Citation(s) in RCA: 1] [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: 04/29/2013] [Indexed: 06/02/2023]
Abstract
We report on parity-violating asymmetries in the nucleon resonance region measured using inclusive inelastic scattering of 5-6 GeV longitudinally polarized electrons off an unpolarized deuterium target. These results are the first parity-violating asymmetry data in the resonance region beyond the Δ(1232). They provide a verification of quark-hadron duality-the equivalence of the quark- and hadron-based pictures of the nucleon-at the (10-15)% level in this electroweak observable, which is dominated by contributions from the nucleon electroweak γZ interference structure functions. In addition, the results provide constraints on nucleon resonance models relevant for calculating background corrections to elastic parity-violating electron scattering measurements.
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Affiliation(s)
- D Wang
- University of Virginia, Charlottesville, Virginia 22904, USA
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9
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Pomerantz I, Ilieva Y, Gilman R, Higinbotham DW, Piasetzky E, Strauch S, Adhikari KP, Aghasyan M, Allada K, Amaryan MJ, Anefalos Pereira S, Anghinolfi M, Baghdasaryan H, Ball J, Baltzell NA, Battaglieri M, Batourine V, Beck A, Beck S, Bedlinskiy I, Berman BL, Biselli AS, Boeglin W, Bono J, Bookwalter C, Boiarinov S, Briscoe WJ, Brooks WK, Bubis N, Burkert V, Camsonne A, Canan M, Carman DS, Celentano A, Chandavar S, Charles G, Chirapatpimol K, Cisbani E, Cole PL, Contalbrigo M, Crede V, Cusanno F, D'Angelo A, Daniel A, Dashyan N, de Jager CW, De Vita R, De Sanctis E, Deur A, Djalali C, Dodge GE, Doughty D, Dupre R, Dutta C, Egiyan H, El Alaoui A, El Fassi L, Eugenio P, Fedotov G, Fegan S, Fleming JA, Fradi A, Garibaldi F, Geagla O, Gevorgyan N, Giovanetti KL, Girod FX, Glister J, Goetz JT, Gohn W, Golovatch E, Gothe RW, Griffioen KA, Guegan B, Guidal M, Guo L, Hafidi K, Hakobyan H, Harrison N, Heddle D, Hicks K, Ho D, Holtrop M, Hyde CE, Ireland DG, Ishkhanov BS, Isupov EL, Jiang X, Jo HS, Joo K, Katramatou AT, Keller D, Khandaker M, Khetarpal P, Khrosinkova E, Kim A, Kim W, Klein FJ, Koirala S, Kubarovsky A, Kubarovsky V, Kuleshov SV, Kvaltine ND, Lee B, LeRose JJ, Lewis S, Lindgren R, Livingston K, Lu HY, MacGregor IJD, Mao Y, Martinez D, Mayer M, McCullough E, McKinnon B, Meekins D, Meyer CA, Michaels R, Mineeva T, Mirazita M, Moffit B, Mokeev V, Montgomery RA, Moutarde H, Munevar E, Munoz Camacho C, Nadel-Turonski P, Nasseripour R, Nepali CS, Niccolai S, Niculescu G, Niculescu I, Osipenko M, Ostrovidov AI, Pappalardo LL, Paremuzyan R, Park K, Park S, Petratos GG, Phelps E, Pisano S, Pogorelko O, Pozdniakov S, Procureur S, Protopopescu D, Puckett AJR, Qian X, Qiang Y, Ricco G, Rimal D, Ripani M, Ritchie BG, Rodriguez I, Ron G, Rosner G, Rossi P, Sabatié F, Saha A, Saini MS, Sarty AJ, Sawatzky B, Saylor NA, Schott D, Schulte E, Schumacher RA, Seder E, Seraydaryan H, Shneor R, Smith GD, Sokhan D, Sparveris N, Stepanyan SS, Stepanyan S, Stoler P, Subedi R, Sulkosky V, Taiuti M, Tang W, Taylor CE, Tkachenko S, Ungaro M, Vernarsky B, Vineyard MF, Voskanyan H, Voutier E, Walford NK, Wang Y, Watts DP, Weinstein LB, Weygand DP, Wojtsekhowski B, Wood MH, Yan X, Yao H, Zachariou N, Zhan X, Zhang J, Zhao ZW, Zheng X, Zonta I. Hard two-body photodisintegration of 3He. Phys Rev Lett 2013; 110:242301. [PMID: 25165915 DOI: 10.1103/physrevlett.110.242301] [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: 03/21/2013] [Indexed: 06/03/2023]
Abstract
We have measured cross sections for the γ(3)He → pd reaction at photon energies of 0.4-1.4 GeV and a center-of-mass angle of 90°. We observe dimensional scaling above 0.7 GeV at this center-of-mass angle. This is the first observation of dimensional scaling in the photodisintegration of a nucleus heavier than the deuteron.
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Affiliation(s)
- I Pomerantz
- Tel Aviv University, Tel Aviv 69978, Israel and The University of Texas at Austin, Austin, Texas 78712, USA
| | - Y Ilieva
- University of South Carolina, Columbia, South Carolina 29208, USA
| | - R Gilman
- Rutgers, The State University of New Jersey, Piscataway, New Jersey 08855, USA and Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - D W Higinbotham
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | | | - S Strauch
- University of South Carolina, Columbia, South Carolina 29208, USA
| | - K P Adhikari
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - M Aghasyan
- INFN, Laboratori Nazionali di Frascati, 00044 Frascati, Italy
| | - K Allada
- University of Kentucky, Lexington, Kentucky 40506, USA
| | - M J Amaryan
- Old Dominion University, Norfolk, Virginia 23529, USA
| | | | | | - H Baghdasaryan
- University of Virginia, Charlottesville, Virginia 22901, USA
| | - J Ball
- CEA, Centre de Saclay, Irfu/Service de Physique Nucléaire, 91191 Gif-sur-Yvette, France
| | - N A Baltzell
- Argonne National Laboratory, Argonne, Illinois 60439, USA
| | | | - V Batourine
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - A Beck
- NRCN, P.O. Box 9001, Beer-Sheva 84190, Israel
| | - S Beck
- NRCN, P.O. Box 9001, Beer-Sheva 84190, Israel
| | - I Bedlinskiy
- Institute of Theoretical and Experimental Physics, Moscow, 117259, Russia
| | - B L Berman
- The George Washington University, Washington, D.C. 20052, USA
| | - A S Biselli
- Fairfield University, Fairfield, Connecticut 06824, USA and Rensselaer Polytechnic Institute, Troy, New York 12180-3590, USA
| | - W Boeglin
- Florida International University, Miami, Florida 33199, USA
| | - J Bono
- Florida International University, Miami, Florida 33199, USA
| | - C Bookwalter
- Florida State University, Tallahassee, Florida 32306, USA
| | - S Boiarinov
- Institute of Theoretical and Experimental Physics, Moscow, 117259, Russia and 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 and Universidad Técnica Federico Santa María, Casilla 110-V Valparaíso, Chile
| | - N Bubis
- Tel Aviv University, Tel Aviv 69978, Israel
| | - V Burkert
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - A Camsonne
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - M Canan
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - D S Carman
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - A Celentano
- INFN, Sezione di Genova, 16146 Genova, Italy
| | | | - G Charles
- CEA, Centre de Saclay, Irfu/Service de Physique Nucléaire, 91191 Gif-sur-Yvette, France
| | - K Chirapatpimol
- University of Virginia, Charlottesville, Virginia 22901, USA
| | - E Cisbani
- INFN, Gruppo collegato Sanità and Istituto Superiore di Sanità, Department TESA, I-00161 Rome, Italy
| | - P L Cole
- Idaho State University, Pocatello, Idaho 83209, USA and Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | | | - V Crede
- Florida State University, Tallahassee, Florida 32306, USA
| | - F Cusanno
- INFN, Gruppo collegato Sanità and Istituto Superiore di Sanità, Department TESA, I-00161 Rome, Italy
| | - A D'Angelo
- INFN, Sezione di Roma Tor Vergata, 00133 Rome, Italy and Università di Roma Tor Vergata, 00133 Rome, Italy
| | - A Daniel
- Ohio University, Athens, Ohio 45701, USA
| | - N Dashyan
- Yerevan Physics Institute, 375036 Yerevan, Armenia
| | - C W de Jager
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - R De Vita
- INFN, Sezione di Genova, 16146 Genova, Italy
| | - E De Sanctis
- INFN, Laboratori Nazionali di Frascati, 00044 Frascati, Italy
| | - A Deur
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - C Djalali
- University of South Carolina, Columbia, South Carolina 29208, USA
| | - G E Dodge
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - D Doughty
- Christopher Newport University, Newport News, Virginia 23606, USA and Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - R Dupre
- CEA, Centre de Saclay, Irfu/Service de Physique Nucléaire, 91191 Gif-sur-Yvette, France
| | - C Dutta
- University of Kentucky, Lexington, Kentucky 40506, USA
| | - H Egiyan
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA and College of William and Mary, Williamsburg, Virginia 23187-8795, USA
| | - A El Alaoui
- Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - L El Fassi
- Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - P Eugenio
- Florida State University, Tallahassee, Florida 32306, USA
| | - G Fedotov
- University of South Carolina, Columbia, South Carolina 29208, USA
| | - S Fegan
- University of Glasgow, Glasgow G12 8QQ, United Kingdom
| | - J A Fleming
- Edinburgh University, Edinburgh EH9 3JZ, United Kingdom
| | - A Fradi
- Institut de Physique Nucléaire ORSAY, Orsay 91406, France
| | - F Garibaldi
- INFN, Gruppo collegato Sanità and Istituto Superiore di Sanità, Department TESA, I-00161 Rome, Italy
| | - O Geagla
- University of Virginia, Charlottesville, Virginia 22901, USA
| | - N Gevorgyan
- Yerevan Physics Institute, 375036 Yerevan, Armenia
| | - K L Giovanetti
- James Madison University, Harrisonburg, Virginia 22807, USA
| | - F X Girod
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - J Glister
- Dalhousie University, Halifax, Nova Scotia B3H 3J5, Canada and Saint Mary's University, Halifax, Nova Scotia B3H 3C3, Canada
| | - J T Goetz
- University of California at Los Angeles, Los Angeles, California 90095-1547, USA
| | - W Gohn
- University of Connecticut, Storrs, Connecticut 06269, USA
| | - E Golovatch
- INFN, Sezione di Genova, 16146 Genova, Italy and Skobeltsyn Nuclear Physics Institute, 119899 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
| | - B Guegan
- Institut de Physique Nucléaire ORSAY, Orsay 91406, France
| | - M Guidal
- Institut de Physique Nucléaire ORSAY, Orsay 91406, France
| | - 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 and Yerevan Physics Institute, 375036 Yerevan, Armenia
| | - N Harrison
- University of Connecticut, Storrs, Connecticut 06269, USA
| | - D Heddle
- Christopher Newport University, Newport News, Virginia 23606, USA and Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - K Hicks
- Ohio University, Athens, Ohio 45701, USA
| | - D Ho
- Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA
| | - 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
| | - B S Ishkhanov
- Skobeltsyn Nuclear Physics Institute, 119899 Moscow, Russia
| | - E L Isupov
- Skobeltsyn Nuclear Physics Institute, 119899 Moscow, Russia
| | - X Jiang
- Rutgers, The State University of New Jersey, Piscataway, New Jersey 08855, USA
| | - H S Jo
- Institut de Physique Nucléaire ORSAY, Orsay 91406, France
| | - K Joo
- University of Connecticut, Storrs, Connecticut 06269, USA and University of Virginia, Charlottesville, Virginia 22901, USA
| | | | - D Keller
- University of Virginia, Charlottesville, Virginia 22901, USA
| | - M Khandaker
- Norfolk State University, Norfolk, Virginia 23504, USA
| | - P Khetarpal
- Florida International University, Miami, Florida 33199, USA
| | | | - A Kim
- Kyungpook National University, Daegu 702-701, Republic of Korea
| | - W Kim
- Kyungpook National University, Daegu 702-701, Republic of Korea
| | - F J Klein
- Catholic University of America, Washington, D.C. 20064, USA
| | - S Koirala
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - A Kubarovsky
- Rensselaer Polytechnic Institute, Troy, New York 12180-3590, USA and Skobeltsyn Nuclear Physics Institute, 119899 Moscow, Russia
| | - V Kubarovsky
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - S V Kuleshov
- Institute of Theoretical and Experimental Physics, Moscow, 117259, Russia and Universidad Técnica Federico Santa María, Casilla 110-V Valparaíso, Chile
| | - N D Kvaltine
- University of Virginia, Charlottesville, Virginia 22901, USA
| | - B Lee
- Kent State University, Kent, Ohio 44242, USA
| | - J J LeRose
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - S Lewis
- University of Glasgow, Glasgow G12 8QQ, United Kingdom
| | - R Lindgren
- University of Virginia, Charlottesville, Virginia 22901, USA
| | - K Livingston
- University of Glasgow, Glasgow G12 8QQ, United Kingdom
| | - H Y Lu
- Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA
| | | | - Y Mao
- University of South Carolina, Columbia, South Carolina 29208, USA
| | - D Martinez
- Idaho State University, Pocatello, Idaho 83209, USA
| | - M Mayer
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - E McCullough
- Saint Mary's University, Halifax, Nova Scotia B3H 3C3, Canada
| | - B McKinnon
- University of Glasgow, Glasgow G12 8QQ, United Kingdom
| | - D Meekins
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - C A Meyer
- Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA
| | - R Michaels
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - T Mineeva
- University of Connecticut, Storrs, Connecticut 06269, USA
| | - M Mirazita
- INFN, Laboratori Nazionali di Frascati, 00044 Frascati, Italy
| | - B Moffit
- College of William and Mary, Williamsburg, Virginia 23187-8795, USA
| | - V Mokeev
- Skobeltsyn Nuclear Physics Institute, 119899 Moscow, Russia and Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | | | - H Moutarde
- CEA, Centre de Saclay, Irfu/Service de Physique Nucléaire, 91191 Gif-sur-Yvette, France
| | - E Munevar
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | | | - P Nadel-Turonski
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - R Nasseripour
- Florida International University, Miami, Florida 33199, USA and James Madison University, Harrisonburg, Virginia 22807, USA
| | - C S Nepali
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - S Niccolai
- Institut de Physique Nucléaire ORSAY, Orsay 91406, France
| | - G Niculescu
- James Madison University, Harrisonburg, Virginia 22807, USA and Ohio University, Athens, Ohio 45701, USA
| | - I Niculescu
- The George Washington University, Washington, D.C. 20052, USA and 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
| | | | - R Paremuzyan
- Yerevan Physics Institute, 375036 Yerevan, Armenia
| | - K Park
- Kyungpook National University, Daegu 702-701, Republic of Korea and Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - S Park
- Florida State University, Tallahassee, Florida 32306, USA
| | | | - E Phelps
- University of South Carolina, Columbia, South Carolina 29208, USA
| | - S Pisano
- INFN, Laboratori Nazionali di Frascati, 00044 Frascati, Italy
| | - O Pogorelko
- Institute of Theoretical and Experimental Physics, Moscow, 117259, Russia
| | - S Pozdniakov
- Institute of Theoretical and Experimental Physics, Moscow, 117259, Russia
| | - S Procureur
- CEA, Centre de Saclay, Irfu/Service de Physique Nucléaire, 91191 Gif-sur-Yvette, France
| | | | - A J R Puckett
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - X Qian
- Duke University, Durham, North Carolina 27708, USA
| | - Y Qiang
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - G Ricco
- Università di Genova, 16146 Genova, Italy
| | - D Rimal
- Florida International University, Miami, Florida 33199, USA
| | - M Ripani
- INFN, Sezione di Genova, 16146 Genova, Italy
| | - B G Ritchie
- Arizona State University, Tempe, Arizona 85287-1504, USA
| | - I Rodriguez
- Florida International University, Miami, Florida 33199, USA
| | - G Ron
- The Hebrew University of Jerusalem, 91904, Israel
| | - G Rosner
- University of Glasgow, Glasgow G12 8QQ, United Kingdom
| | - P Rossi
- INFN, Laboratori Nazionali di Frascati, 00044 Frascati, Italy
| | - F Sabatié
- CEA, Centre de Saclay, Irfu/Service de Physique Nucléaire, 91191 Gif-sur-Yvette, France
| | - A Saha
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - M S Saini
- Florida State University, Tallahassee, Florida 32306, USA
| | - A J Sarty
- Saint Mary's University, Halifax, Nova Scotia B3H 3C3, Canada
| | - B Sawatzky
- Temple University, Philadelphia, Pennsylvania 19122, USA and University of Virginia, Charlottesville, Virginia 22901, USA
| | - N A Saylor
- Rensselaer Polytechnic Institute, Troy, New York 12180-3590, USA
| | - D Schott
- The George Washington University, Washington, D.C. 20052, USA
| | - E Schulte
- Rutgers, The State University of New Jersey, Piscataway, New Jersey 08855, USA
| | - R A Schumacher
- Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA
| | - E Seder
- University of Connecticut, Storrs, Connecticut 06269, USA
| | - H Seraydaryan
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - R Shneor
- Tel Aviv University, Tel Aviv 69978, Israel
| | - G D Smith
- University of Glasgow, Glasgow G12 8QQ, United Kingdom
| | - D Sokhan
- Institut de Physique Nucléaire ORSAY, Orsay 91406, France
| | - N Sparveris
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA and Temple University, Philadelphia, Pennsylvania 19122, USA
| | - S S Stepanyan
- Kyungpook National University, Daegu 702-701, Republic of Korea
| | - S Stepanyan
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - P Stoler
- Rensselaer Polytechnic Institute, Troy, New York 12180-3590, USA
| | - R Subedi
- Kent State University, Kent, Ohio 44242, USA
| | - V Sulkosky
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - M Taiuti
- Università di Genova, 16146 Genova, Italy
| | - W Tang
- Ohio University, Athens, Ohio 45701, USA
| | - C E Taylor
- Idaho State University, Pocatello, Idaho 83209, USA
| | - S Tkachenko
- University of Virginia, Charlottesville, Virginia 22901, USA
| | - M Ungaro
- Rensselaer Polytechnic Institute, Troy, New York 12180-3590, USA and Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - B Vernarsky
- Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA
| | | | - H Voskanyan
- Yerevan Physics Institute, 375036 Yerevan, Armenia
| | - E Voutier
- LPSC, Université Joseph Fourier, CNRS/IN2P3, INPG, Grenoble, France
| | - N K Walford
- Catholic University of America, Washington, D.C. 20064, USA
| | - Y Wang
- University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA
| | - D P Watts
- Edinburgh University, Edinburgh EH9 3JZ, United Kingdom
| | - L B Weinstein
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - D P Weygand
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - B Wojtsekhowski
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - M H Wood
- Canisius College, Buffalo, New York 14208, USA
| | - X Yan
- Kent State University, Kent, Ohio 44242, USA
| | - H Yao
- Temple University, Philadelphia, Pennsylvania 19122, USA
| | - N Zachariou
- University of South Carolina, Columbia, South Carolina 29208, USA
| | - X Zhan
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - J Zhang
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - Z W Zhao
- University of Virginia, Charlottesville, Virginia 22901, USA
| | - X Zheng
- University of Virginia, Charlottesville, Virginia 22901, USA
| | - I Zonta
- INFN, Sezione di Roma Tor Vergata, 00133 Rome, Italy
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10
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Abrahamyan S, Ahmed Z, Albataineh H, Aniol K, Armstrong DS, Armstrong W, Averett T, Babineau B, Barbieri A, Bellini V, Beminiwattha R, Benesch J, Benmokhtar F, Bielarski T, Boeglin W, Camsonne A, Canan M, Carter P, Cates GD, Chen C, Chen JP, Hen O, Cusanno F, Dalton MM, De Leo R, de Jager K, Deconinck W, Decowski P, Deng X, Deur A, Dutta D, Etile A, Flay D, Franklin GB, Friend M, Frullani S, Fuchey E, Garibaldi F, Gasser E, Gilman R, Giusa A, Glamazdin A, Gomez J, Grames J, Gu C, Hansen O, Hansknecht J, Higinbotham DW, Holmes RS, Holmstrom T, Horowitz CJ, Hoskins J, Huang J, Hyde CE, Itard F, Jen CM, Jensen E, Jin G, Johnston S, Kelleher A, Kliakhandler K, King PM, Kowalski S, Kumar KS, Leacock J, Leckey J, Lee JH, LeRose JJ, Lindgren R, Liyanage N, Lubinsky N, Mammei J, Mammoliti F, Margaziotis DJ, Markowitz P, McCreary A, McNulty D, Mercado L, Meziani ZE, Michaels RW, Mihovilovic M, Muangma N, Muñoz-Camacho C, Nanda S, Nelyubin V, Nuruzzaman N, Oh Y, Palmer A, Parno D, Paschke KD, Phillips SK, Poelker B, Pomatsalyuk R, Posik M, Puckett AJR, Quinn B, Rakhman A, Reimer PE, Riordan S, Rogan P, Ron G, Russo G, Saenboonruang K, Saha A, Sawatzky B, Shahinyan A, Silwal R, Sirca S, Slifer K, Solvignon P, Souder PA, Sperduto ML, Subedi R, Suleiman R, Sulkosky V, Sutera CM, Tobias WA, Troth W, Urciuoli GM, Waidyawansa B, Wang D, Wexler J, Wilson R, Wojtsekhowski B, Yan X, Yao H, Ye Y, Ye Z, Yim V, Zana L, Zhan X, Zhang J, Zhang Y, Zheng X, Zhu P. Measurement of the neutron radius of 208Pb through parity violation in electron scattering. Phys Rev Lett 2012; 108:112502. [PMID: 22540469 DOI: 10.1103/physrevlett.108.112502] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2012] [Indexed: 05/31/2023]
Abstract
We report the first measurement of the parity-violating asymmetry A(PV) in the elastic scattering of polarized electrons from 208Pb. A(PV) is sensitive to the radius of the neutron distribution (R(n)). The result A(PV)=0.656±0.060(stat)±0.014(syst) ppm corresponds to a difference between the radii of the neutron and proton distributions R(n)-R(p)=0.33(-0.18)(+0.16) fm and provides the first electroweak observation of the neutron skin which is expected in a heavy, neutron-rich nucleus.
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11
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Ahmed Z, Allada K, Aniol KA, Armstrong DS, Arrington J, Baturin P, Bellini V, Benesch J, Beminiwattha R, Benmokhtar F, Canan M, Camsonne A, Cates GD, Chen JP, Chudakov E, Cisbani E, Dalton MM, de Jager CW, De Leo R, Deconinck W, Decowski P, Deng X, Deur A, Dutta C, Franklin GB, Friend M, Frullani S, Garibaldi F, Giusa A, Glamazdin A, Golge S, Grimm K, Hansen O, Higinbotham DW, Holmes R, Holmstrom T, Huang J, Huang M, Hyde CE, Jen CM, Jin G, Jones D, Kang H, King P, Kowalski S, Kumar KS, Lee JH, LeRose JJ, Liyanage N, Long E, McNulty D, Margaziotis D, Meddi F, Meekins DG, Mercado L, Meziani ZE, Michaels R, Muñoz-Camacho C, Mihovilovic M, Muangma N, Myers KE, Nanda S, Narayan A, Nelyubin V, Oh Y, Pan K, Parno D, Paschke KD, Phillips SK, Qian X, Qiang Y, Quinn B, Rakhman A, Reimer PE, Rider K, Riordan S, Roche J, Rubin J, Russo G, Saenboonruang K, Saha A, Sawatzky B, Silwal R, Sirca S, Souder PA, Sperduto M, Subedi R, Suleiman R, Sulkosky V, Sutera CM, Tobias WA, Urciuoli GM, Waidyawansa B, Wang D, Wexler J, Wilson R, Wojtsekhowski B, Zhan X, Yan X, Yao H, Ye L, Zhao B, Zheng X. New precision limit on the strange vector form factors of the proton. Phys Rev Lett 2012; 108:102001. [PMID: 22468841 DOI: 10.1103/physrevlett.108.102001] [Citation(s) in RCA: 6] [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: 07/05/2011] [Indexed: 05/31/2023]
Abstract
The parity-violating cross-section asymmetry in the elastic scattering of polarized electrons from unpolarized protons has been measured at a four-momentum transfer squared Q2 = 0.624 GeV2 and beam energy E(b) = 3.48 GeV to be A(PV) = -23.80 ± 0.78(stat) ± 0.36(syst) parts per million. This result is consistent with zero contribution of strange quarks to the combination of electric and magnetic form factors G(E)(s) + 0.517G(M)(s) = 0.003 ± 0.010(stat) ± 0.004(syst) ± 0.009(ff), where the third error is due to the limits of precision on the electromagnetic form factors and radiative corrections. With this measurement, the world data on strange contributions to nucleon form factors are seen to be consistent with zero and not more than a few percent of the proton form factors.
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Affiliation(s)
- Z Ahmed
- Syracuse University, Syracuse, New York 13244, USA
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12
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Abrahamyan S, Ahmed Z, Allada K, Anez D, Averett T, Barbieri A, Bartlett K, Beacham J, Bono J, Boyce JR, Brindza P, Camsonne A, Cranmer K, Dalton MM, de Jager CW, Donaghy J, Essig R, Field C, Folts E, Gasparian A, Goeckner-Wald N, Gomez J, Graham M, Hansen JO, Higinbotham DW, Holmstrom T, Huang J, Iqbal S, Jaros J, Jensen E, Kelleher A, Khandaker M, LeRose JJ, Lindgren R, Liyanage N, Long E, Mammei J, Markowitz P, Maruyama T, Maxwell V, Mayilyan S, McDonald J, Michaels R, Moffeit K, Nelyubin V, Odian A, Oriunno M, Partridge R, Paolone M, Piasetzky E, Pomerantz I, Qiang Y, Riordan S, Roblin Y, Sawatzky B, Schuster P, Segal J, Selvy L, Shahinyan A, Subedi R, Sulkosky V, Stepanyan S, Toro N, Walz D, Wojtsekhowski B, Zhang J. Search for a new gauge boson in electron-nucleus fixed-target scattering by the APEX experiment. Phys Rev Lett 2011; 107:191804. [PMID: 22181599 DOI: 10.1103/physrevlett.107.191804] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/12/2011] [Indexed: 05/31/2023]
Abstract
We present a search at the Jefferson Laboratory for new forces mediated by sub-GeV vector bosons with weak coupling α' to electrons. Such a particle A' can be produced in electron-nucleus fixed-target scattering and then decay to an e + e- pair, producing a narrow resonance in the QED trident spectrum. Using APEX test run data, we searched in the mass range 175-250 MeV, found no evidence for an A'→ e+ e- reaction, and set an upper limit of α'/α ~/= 10(-6). Our findings demonstrate that fixed-target searches can explore a new, wide, and important range of masses and couplings for sub-GeV forces.
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Affiliation(s)
- S Abrahamyan
- Yerevan Physics Institute, Yerevan 375036, Armenia
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13
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Qian X, Allada K, Dutta C, Huang J, Katich J, Wang Y, Zhang Y, Aniol K, Annand JRM, Averett T, Benmokhtar F, Bertozzi W, Bradshaw PC, Bosted P, Camsonne A, Canan M, Cates GD, Chen C, Chen JP, Chen W, Chirapatpimol K, Chudakov E, Cisbani E, Cornejo JC, Cusanno F, Dalton MM, Deconinck W, de Jager CW, De Leo R, Deng X, Deur A, Ding H, Dolph PAM, Dutta D, El Fassi L, Frullani S, Gao H, Garibaldi F, Gaskell D, Gilad S, Gilman R, Glamazdin O, Golge S, Guo L, Hamilton D, Hansen O, Higinbotham DW, Holmstrom T, Huang M, Ibrahim HF, Iodice M, Jiang X, Jin G, Jones MK, Kelleher A, Kim W, Kolarkar A, Korsch W, LeRose JJ, Li X, Li Y, Lindgren R, Liyanage N, Long E, Lu HJ, Margaziotis DJ, Markowitz P, Marrone S, McNulty D, Meziani ZE, Michaels R, Moffit B, Camacho CM, Nanda S, Narayan A, Nelyubin V, Norum B, Oh Y, Osipenko M, Parno D, Peng JC, Phillips SK, Posik M, Puckett AJR, Qiang Y, Rakhman A, Ransome RD, Riordan S, Saha A, Sawatzky B, Schulte E, Shahinyan A, Shabestari MH, Sirca S, Stepanyan S, Subedi R, Sulkosky V, Tang LG, Tobias A, Urciuoli GM, Vilardi I, Wang K, Wojtsekhowski B, Yan X, Yao H, Ye Y, Ye Z, Yuan L, Zhan X, Zhang YW, Zhao B, Zheng X, Zhu L, Zhu X, Zong X. Single spin asymmetries in charged pion production from semi-inclusive deep inelastic scattering on a transversely polarized 3He Target at Q2 = 1.4-2.7 GeV2. Phys Rev Lett 2011; 107:072003. [PMID: 21902386 DOI: 10.1103/physrevlett.107.072003] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2011] [Indexed: 05/31/2023]
Abstract
We report the first measurement of target single spin asymmetries in the semi-inclusive (3)He(e,e'π(±))X reaction on a transversely polarized target. The experiment, conducted at Jefferson Lab using a 5.9 GeV electron beam, covers a range of 0.16 < x < 0.35 with 1.4 < Q(2) < 2.7 GeV(2). The Collins and Sivers moments were extracted from the azimuthal angular dependence of the measured asymmetries. The π(±) Collins moments for (3)He are consistent with zero, except for the π(+) moment at x = 0.35, which deviates from zero by 2.3σ. While the π(-) Sivers moments are consistent with zero, the π(+) Sivers moments favor negative values. The neutron results were extracted using the nucleon effective polarization and measured cross section ratios of proton to (3)He, and are largely consistent with the predictions of phenomenological fits and quark model calculations.
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Affiliation(s)
- X Qian
- Duke University, Durham, North Carolina 27708, USA.
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Cusanno F, Urciuoli GM, Acha A, Ambrozewicz P, Aniol KA, Baturin P, Bertin PY, Benaoum H, Blomqvist KI, Boeglin WU, Breuer H, Brindza P, Bydzovský P, Camsonne A, Chang CC, Chen JP, Choi S, Chudakov EA, Cisbani E, Colilli S, Coman L, Craver BJ, De Cataldo G, de Jager CW, De Leo R, Deur AP, Ferdi C, Feuerbach RJ, Folts E, Fratoni R, Frullani S, Garibaldi F, Gayou O, Giuliani F, Gomez J, Gricia M, Hansen JO, Hayes D, Higinbotham DW, Holmstrom TK, Hyde CE, Ibrahim HF, Iodice M, Jiang X, Kaufman LJ, Kino K, Kross B, Lagamba L, LeRose JJ, Lindgren RA, Lucentini M, Margaziotis DJ, Markowitz P, Marrone S, Meziani ZE, McCormick K, Michaels RW, Millener DJ, Miyoshi T, Moffit B, Monaghan PA, Moteabbed M, Muñoz Camacho C, Nanda S, Nappi E, Nelyubin VV, Norum BE, Okasyasu Y, Paschke KD, Perdrisat CF, Piasetzky E, Punjabi VA, Qiang Y, Raue B, Reimer PE, Reinhold J, Reitz B, Roche RE, Rodriguez VM, Saha A, Santavenere F, Sarty AJ, Segal J, Shahinyan A, Singh J, Sirca S, Snyder R, Solvignon PH, Sotona M, Subedi R, Sulkosky VA, Suzuki T, Ueno H, Ulmer PE, Veneroni P, Voutier E, Wojtsekhowski BB, Zheng X, Zorn C. High-resolution spectroscopy of Lambda16N by electroproduction. Phys Rev Lett 2009; 103:202501. [PMID: 20365979 DOI: 10.1103/physrevlett.103.202501] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2008] [Revised: 09/14/2009] [Indexed: 05/29/2023]
Abstract
An experimental study of the (16)O(e,e'K(+))(Lambda)(16)N reaction has been performed at Jefferson Lab. A thin film of falling water was used as a target. This permitted a simultaneous measurement of the p(e,e'K(+))Lambda, Sigma(0) exclusive reactions and a precise calibration of the energy scale. A ground-state binding energy of 13.76+/-0.16 MeV was obtained for (Lambda)(16)N with better precision than previous measurements on the mirror hypernucleus (Lambda)(16)O. Precise energies have been determined for peaks arising from a Lambda in s and p orbits coupled to the p(1/2) and p(3/2) hole states of the (15)N core nucleus.
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Affiliation(s)
- F Cusanno
- Istituto Nazionale di Fisica Nucleare, Sezione di Roma, Piazzale Aldo Moro 2, I-00185 Rome, Italy
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15
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Subedi R, Shneor R, Monaghan P, Anderson BD, Aniol K, Annand J, Arrington J, Benaoum H, Benmokhtar F, Boeglin W, Chen JP, Choi S, Cisbani E, Craver B, Frullani S, Garibaldi F, Gilad S, Gilman R, Glamazdin O, Hansen JO, Higinbotham DW, Holmstrom T, Ibrahim H, Igarashi R, de Jager CW, Jans E, Jiang X, Kaufman LJ, Kelleher A, Kolarkar A, Kumbartzki G, LeRose JJ, Lindgren R, Liyanage N, Margaziotis DJ, Markowitz P, Marrone S, Mazouz M, Meekins D, Michaels R, Moffit B, Perdrisat CF, Piasetzky E, Potokar M, Punjabi V, Qiang Y, Reinhold J, Ron G, Rosner G, Saha A, Sawatzky B, Shahinyan A, Sirca S, Slifer K, Solvignon P, Sulkosky V, Urciuoli GM, Voutier E, Watson JW, Weinstein LB, Wojtsekhowski B, Wood S, Zheng XC, Zhu L. Probing Cold Dense Nuclear Matter. Science 2008; 320:1476-8. [DOI: 10.1126/science.1156675] [Citation(s) in RCA: 310] [Impact Index Per Article: 19.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
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16
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Ron G, Glister J, Lee B, Allada K, Armstrong W, Arrington J, Beck A, Benmokhtar F, Berman BL, Boeglin W, Brash E, Camsonne A, Calarco J, Chen JP, Choi S, Chudakov E, Coman L, Craver B, Cusanno F, Dumas J, Dutta C, Feuerbach R, Freyberger A, Frullani S, Garibaldi F, Gilman R, Hansen O, Higinbotham DW, Holmstrom T, Hyde CE, Ibrahim H, Ilieva Y, de Jager CW, Jiang X, Jones MK, Kang H, Kelleher A, Khrosinkova E, Kuchina E, Kumbartzki G, LeRose JJ, Lindgren R, Markowitz P, May-Tal Beck S, McCullough E, Meekins D, Meziane M, Meziani ZE, Michaels R, Moffit B, Norum BE, Oh Y, Olson M, Paolone M, Paschke K, Perdrisat CF, Piasetzky E, Potokar M, Pomatsalyuk R, Pomerantz I, Puckett A, Punjabi V, Qian X, Qiang Y, Ransome R, Reyhan M, Roche J, Rousseau Y, Saha A, Sarty AJ, Sawatzky B, Schulte E, Shabestari M, Shahinyan A, Shneor R, Sirca S, Slifer K, Solvignon P, Song J, Sparks R, Subedi R, Strauch S, Urciuoli GM, Wang K, Wojtsekhowski B, Yan X, Yao H, Zhan X, Zhu X. Measurements of the proton elastic-form-factor ratio mu pG p E/G p M at low momentum transfer. Phys Rev Lett 2007; 99:202002. [PMID: 18233135 DOI: 10.1103/physrevlett.99.202002] [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: 06/04/2007] [Indexed: 05/25/2023]
Abstract
High-precision measurements of the proton elastic form-factor ratio, mu pG p E/G p M, have been made at four-momentum transfer, Q2, values between 0.2 and 0.5 GeV2. The new data, while consistent with previous results, clearly show a ratio less than unity and significant differences from the central values of several recent phenomenological fits. By combining the new form-factor ratio data with an existing cross-section measurement, one finds that in this Q2 range the deviation from unity is primarily due to G p E being smaller than expected.
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Affiliation(s)
- G Ron
- Tel Aviv University, Tel Aviv 69978, Israel
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17
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Shneor R, Monaghan P, Subedi R, Anderson BD, Aniol K, Annand J, Arrington J, Benaoum H, Benmokhtar F, Bertin P, Bertozzi W, Boeglin W, Chen JP, Choi S, Chudakov E, Cisbani E, Craver B, de Jager CW, Feuerbach RJ, Frullani S, Garibaldi F, Gayou O, Gilad S, Gilman R, Glamazdin O, Gomez J, Hansen JO, Higinbotham DW, Holmstrom T, Ibrahim H, Igarashi R, Jans E, Jiang X, Jiang Y, Kaufman L, Kelleher A, Kolarkar A, Kuchina E, Kumbartzki G, LeRose JJ, Lindgren R, Liyanage N, Margaziotis DJ, Markowitz P, Marrone S, Mazouz M, Meekins D, Michaels R, Moffit B, Nanda S, Perdrisat CF, Piasetzky E, Potokar M, Punjabi V, Qiang Y, Reinhold J, Reitz B, Ron G, Rosner G, Saha A, Sawatzky B, Shahinyan A, Sirca S, Slifer K, Solvignon P, Sulkosky V, Thompson N, Ulmer PE, Urciuoli GM, Voutier E, Wang K, Watson JW, Weinstein LB, Wojtsekhowski B, Wood S, Yao H, Zheng X, Zhu L. Investigation of proton-proton short-range correlations via the 12C(e,e'pp) reaction. Phys Rev Lett 2007; 99:072501. [PMID: 17930888 DOI: 10.1103/physrevlett.99.072501] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2007] [Indexed: 05/25/2023]
Abstract
We investigated simultaneously the 12C(e,e'p) and 12C(e,e'pp) reactions at Q2=2 (GeV/c)2, xB=1.2, and in an (e, e'p) missing-momentum range from 300 to 600 MeV/c. At these kinematics, with a missing momentum greater than the Fermi momentum of nucleons in a nucleus and far from the delta excitation, short-range nucleon-nucleon correlations are predicted to dominate the reaction. For (9.5+/-2)% of the 12C(e,e'p) events, a recoiling partner proton was observed back-to-back to the 12C(e,e'p) missing-momentum vector, an experimental signature of correlations.
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Affiliation(s)
- R Shneor
- Tel Aviv University, Tel Aviv 69978, Israel
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18
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Iodice M, Cusanno F, Acha A, Ambrozewicz P, Aniol KA, Baturin P, Bertin PY, Benaoum H, Blomqvist KI, Boeglin WU, Breuer H, Brindza P, Bydzovský P, Camsonne A, Chang CC, Chen JP, Choi S, Chudakov EA, Cisbani E, Colilli S, Coman L, Craver BJ, De Cataldo G, de Jager CW, De Leo R, Deur AP, Ferdi C, Feuerbach RJ, Folts E, Fratoni R, Frullani S, Garibaldi F, Gayou O, Giulani F, Gomez J, Gricia M, Hansen JO, Hayes D, Higinbotham DW, Holmstrom TK, Hyde CE, Ibrahim HF, Jiang X, Kaufman LJ, Kino K, Kross B, Lagamba L, LeRose JJ, Lindgren RA, Lucentini M, Margaziotis DJ, Markowitz P, Marrone S, Meziani ZE, McCormick K, Michaels RW, Millener DJ, Miyoshi T, Moffit B, Monaghan PA, Moteabbed M, Muñoz Camacho C, Nanda S, Nappi E, Nelyubin VV, Norum BE, Okasyasu Y, Paschke KD, Perdrisat CF, Piasetzky E, Punjabi VA, Qiang Y, Raue B, Reimer PE, Reinhold J, Reitz B, Roche RE, Rodriguez VM, Saha A, Santavenere F, Sarty AJ, Segal J, Shahinyan A, Singh J, Sirca S, Snyder R, Solvignon PH, Sotona M, Subedi R, Sulkosky VA, Suzuki T, Ueno H, Ulmer PE, Urciuoli GM, Veneroni P, Voutier E, Wojtsekhowski BB, Ye Y, Zheng X, Zhou S, Zorn C. High resolution spectroscopy of (lambda)(12)B by electroproduction. Phys Rev Lett 2007; 99:052501. [PMID: 17930747 DOI: 10.1103/physrevlett.99.052501] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/23/2007] [Indexed: 05/25/2023]
Abstract
An experiment measuring electroproduction of hypernuclei has been performed in hall A at Jefferson Lab on a 12C target. In order to increase counting rates and provide unambiguous kaon identification two superconducting septum magnets and a ring imaging Cherenkov detector were added to the hall A standard equipment. An unprecedented energy resolution of less than 700 keV FWHM has been achieved. Thus, the observed (Lambda)(12)B spectrum shows for the first time identifiable strength in the core-excited region between the ground-state s-wave Lambda peak and the 11 MeV p-wave Lambda peak.
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Affiliation(s)
- M Iodice
- Istituto Nazionale di Fisica Nucleare, Sezione di Roma Tre, I-00146 Roma, Italy
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19
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Laveissière G, Todor L, Degrande N, Jaminion S, Jutier C, Di Salvo R, Van Hoorebeke L, Alexa LC, Anderson BD, Aniol KA, Arundell K, Audit G, Auerbach L, Baker FT, Baylac M, Berthot J, Bertin PY, Bertozzi W, Bimbot L, Boeglin WU, Brash EJ, Breton V, Breuer H, Burtin E, Calarco JR, Cardman LS, Cavata C, Chang CC, Chen JP, Chudakov E, Cisbani E, Dale DS, de Jager CW, De Leo R, Deur A, d'Hose N, Dodge GE, Domingo JJ, Elouadrhiri L, Epstein MB, Ewell LA, Finn JM, Fissum KG, Fonvieille H, Fournier G, Frois B, Frullani S, Furget C, Gao H, Gao J, Garibaldi F, Gasparian A, Gilad S, Gilman R, Glamazdin A, Glashausser C, Gomez J, Gorbenko V, Grenier P, Guichon PAM, Hansen JO, Holmes R, Holtrop M, Howell C, Huber GM, Hyde-Wright CE, Incerti S, Iodice M, Jardillier J, Jones MK, Kahl W, Kato S, Katramatou AT, Kelly JJ, Kerhoas S, Ketikyan A, Khayat M, Kino K, Kox S, Kramer LH, Kumar KS, Kumbartzki G, Kuss M, Leone A, LeRose JJ, Liang M, Lindgren RA, Liyanage N, Lolos GJ, Lourie RW, Madey R, Maeda K, Malov S, Manley DM, Marchand C, Marchand D, Margaziotis DJ, Markowitz P, Marroncle J, Martino J, McCormick K, McIntyre J, Mehrabyan S, Merchez F, Meziani ZE, Michaels R, Miller GW, Mougey JY, Nanda SK, Neyret D, Offermann EAJM, Papandreou Z, Pasquini B, Perdrisat CF, Perrino R, Petratos GG, Platchkov S, Pomatsalyuk R, Prout DL, Punjabi VA, Pussieux T, Quémenér G, Ransome RD, Ravel O, Real JS, Renard F, Roblin Y, Rowntree D, Rutledge G, Rutt PM, Saha A, Saito T, Sarty AJ, Serdarevic A, Smith T, Smirnov G, Soldi K, Sorokin P, Souder PA, Suleiman R, Templon JA, Terasawa T, Tieulent R, Tomasi-Gustaffson E, Tsubota H, Ueno H, Ulmer PE, Urciuoli GM, Vanderhaeghen M, Van De Vyver R, Van der Meer RLJ, Vernin P, Vlahovic B, Voskanyan H, Voutier E, Watson JW, Weinstein LB, Wijesooriya K, Wilson R, Wojtsekhowski BB, Zainea DG, Zhang WM, Zhao J, Zhou ZL. Measurement of the generalized polarizabilities of the proton in virtual Compton scattering at Q2=0.92 and 1.76 GeV2. Phys Rev Lett 2004; 93:122001. [PMID: 15447252 DOI: 10.1103/physrevlett.93.122001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/23/2003] [Indexed: 05/24/2023]
Abstract
We report a virtual Compton scattering study of the proton at low c.m. energies. We have determined the structure functions P(LL)-P(TT)/epsilon and P(LT), and the electric and magnetic generalized polarizabilities (GPs) alpha(E)(Q2) and beta(M)(Q2) at momentum transfer Q(2)=0.92 and 1.76 GeV2. The electric GP shows a strong falloff with Q2, and its global behavior does not follow a simple dipole form. The magnetic GP shows a rise and then a falloff; this can be interpreted as the dominance of a long-distance diamagnetic pion cloud at low Q2, compensated at higher Q2 by a paramagnetic contribution from piN intermediate states.
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Affiliation(s)
- G Laveissière
- Université Blaise Pascal/IN2P3, F-63177 Aubière, France
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20
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Strauch S, Dieterich S, Aniol KA, Annand JRM, Baker OK, Bertozzi W, Boswell M, Brash EJ, Chai Z, Chen JP, Christy ME, Chudakov E, Cochran A, De Leo R, Ent R, Epstein MB, Finn JM, Fissum KG, Forest TA, Frullani S, Garibaldi F, Gasparian A, Gayou O, Gilad S, Gilman R, Glashausser C, Gomez J, Gorbenko V, Gueye PLJ, Hansen JO, Higinbotham DW, Hu B, Hyde-Wright CE, Ireland DG, Jackson C, de Jager CW, Jiang X, Jones C, Jones MK, Kellie JD, Kelly JJ, Keppel CE, Kumbartzki G, Kuss M, LeRose JJ, Livingston K, Liyanage N, Malov S, Margaziotis DJ, Meekins D, Michaels R, Mitchell JH, Nanda SK, Nappa J, Perdrisat CF, Punjabi VA, Ransome RD, Roché R, Rosner G, Rvachev M, Sabatie F, Saha A, Sarty A, Udias JM, Ulmer PE, Urciuoli GM, van den Brand JFJ, Vignote JR, Watts DP, Weinstein LB, Wijesooriya K, Wojtsekhowski B. Polarization transfer in the 4He(e-->,e'p-->)3H reaction up to Q2=2.6 (GeV/c)2. Phys Rev Lett 2003; 91:052301. [PMID: 12906589 DOI: 10.1103/physrevlett.91.052301] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2002] [Revised: 05/05/2003] [Indexed: 05/24/2023]
Abstract
We have measured the proton recoil polarization in the 4He(e-->,e(')p-->)4H reaction at Q(2)=0.5, 1.0, 1.6, and 2.6 (GeV/c)(2). The measured ratio of polarization transfer coefficients differs from a fully relativistic calculation, favoring the inclusion of a medium modification of the proton form factors predicted by a quark-meson coupling model. In addition, the measured induced polarizations agree reasonably well with the fully relativistic calculation indicating that the treatment of final-state interactions is under control.
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Affiliation(s)
- S Strauch
- Rutgers, The State University of New Jersey, Piscataway, New Jersey 08854, USA
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21
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Ulmer PE, Aniol KA, Arenhövel H, Chen JP, Chudakov E, Crovelli D, Finn JM, Fissum KG, Gayou O, Gomez J, Hansen JO, De Jager CW, Jeschonnek S, Jones MK, Kuss M, LeRose JJ, Liang M, Lindgren RA, Malov S, Meekins D, Michaels R, Mitchell J, Perdrisat CF, Punjabi V, Roché R, Sabatie F, Saha A, Suleiman R, Todor L, Wojtsekhowski BB. 2H(e,e(')p)n reaction at high recoil momenta. Phys Rev Lett 2002; 89:062301. [PMID: 12190578 DOI: 10.1103/physrevlett.89.062301] [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: 11/20/2001] [Indexed: 05/23/2023]
Abstract
The 2H(e,e(')p)n cross section was measured in Hall A of the Thomas Jefferson National Accelerator Facility near the top of the quasielastic peak (x(Bj)=0.964) at a four-momentum transfer squared, Q(2)=0.665 (GeV/c) (2) (omega=0.368 GeV, W=2.057 GeV), and for recoil momenta up to 550 MeV/c. The measured cross section deviates by 1-2sigma from a state-of-the-art calculation at low recoil momenta. At high recoil momenta the cross section is well described by the same calculation; however, in this region, final-state interactions and interaction currents are predicted to be large, and alternative choices of nucleon-nucleon potential and nucleon current operator may result in significant spread in the calculations.
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Affiliation(s)
- P E Ulmer
- Old Dominion University, Norfolk, Virginia 23529, USA
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22
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Gayou O, Aniol KA, Averett T, Benmokhtar F, Bertozzi W, Bimbot L, Brash EJ, Calarco JR, Cavata C, Chai Z, Chang CC, Chang T, Chen JP, Chudakov E, De Leo R, Dieterich S, Endres R, Epstein MB, Escoffier S, Fissum KG, Fonvieille H, Frullani S, Gao J, Garibaldi F, Gilad S, Gilman R, Glamazdin A, Glashausser C, Gomez J, Gorbenko V, Hansen JO, Higinbotham DW, Huber GM, Iodice M, de Jager CW, Jiang X, Jones MK, Kelly JJ, Khandaker M, Kozlov A, Kramer KM, Kumbartzki G, LeRose JJ, Lhuillier D, Lindgren RA, Liyanage N, Lolos GJ, Margaziotis DJ, Marie F, Markowitz P, McCormick K, Michaels R, Milbrath BD, Nanda SK, Neyret D, Papandreou Z, Pentchev L, Perdrisat CF, Piskunov NM, Punjabi V, Pussieux T, Quéméner G, Ransome RD, Raue BA, Roché R, Rvachev M, Saha A, Salgado C, Sirca S, Sitnik I, Strauch S, Todor L, Tomasi-Gustafsson E, Urciuoli GM, Voskanyan H, Wijesooriya K, Wojtsekhowski BB, Zheng X, Zhu L. Measurement of G(E(p))/G(M(p)) in e(-->)p---> e(-->)p to Q(2) = 5.6 GeV(2). Phys Rev Lett 2002; 88:092301. [PMID: 11863996 DOI: 10.1103/physrevlett.88.092301] [Citation(s) in RCA: 41] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2001] [Indexed: 05/23/2023]
Abstract
The ratio of the electric and magnetic form factors of the proton G(E(p))/G(M(p)), which is an image of its charge and magnetization distributions, was measured at the Thomas Jefferson National Accelerator Facility (JLab) using the recoil polarization technique. The ratio of the form factors is directly proportional to the ratio of the transverse to longitudinal components of the polarization of the recoil proton in the elastic e(-->)p---> e(-->)p reaction. The new data presented span the range 3.5< Q(2)< 5.6 GeV(2) and are well described by a linear Q(2) fit. Also, the ratio sqrt[Q(2)] F(2(p))/F(1(p)) reaches a constant value above Q(2) = 2 GeV(2).
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Affiliation(s)
- O Gayou
- College of William and Mary, Williamsburg, VA 23187, USA
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Liyanage N, Anderson BD, Aniol KA, Auerbach L, Baker FT, Berthot J, Bertozzi W, Bertin PY, Bimbot L, Boeglin WU, Brash EJ, Breton V, Breuer H, Burtin E, Calarco JR, Cardman L, Cates GD, Cavata C, Chang CC, Chen JP, Cisbani E, Dale DS, De Leo R, Deur A, Diederich B, Djawotho P, Domingo J, Doyle B, Ducret JE, Epstein MB, Ewell LA, Finn JM, Fissum KG, Fonvieille H, Frois B, Frullani S, Gao J, Garibaldi F, Gasparian A, Gilad S, Gilman R, Glamazdin A, Glashausser C, Gomez J, Gorbenko V, Gorringe T, Hersman FW, Holmes R, Holtrop M, d'Hose N, Howell C, Huber GM, Hyde-Wright CE, Iodice M, de Jager CW, Jaminion S, Jones MK, Joo K, Jutier C, Kahl W, Kato S, Kelly JJ, Kerhoas S, Khandaker M, Khayat M, Kino K, Korsch W, Kramer L, Kumar KS, Kumbartzki G, Laveissière G, Leone A, LeRose JJ, Levchuk L, Liang M, Lindgren RA, Lolos GJ, Lourie RW, Madey R, Maeda K, Malov S, Manley DM, Margaziotis DJ, Markowitz P, Martino J, McCarthy JS, McCormick K, McIntyre J, van der Meer RL, Meziani ZE, Michaels R, Mougey J, Nanda S, Neyret D, Offermann EA, Papandreou Z, Perdrisat CF, Perrino R, Petratos GG, Platchkov S, Pomatsalyuk R, Prout DL, Punjabi VA, Pussieux T, Quéméner G, Ransome RD, Ravel O, Roblin Y, Roche R, Rowntree D, Rutledge GA, Rutt PM, Saha A, Saito T, Sarty AJ, Serdarevic-Offermann A, Smith TP, Soldi A, Sorokin P, Souder P, Suleiman R, Templon JA, Terasawa T, Todor L, Tsubota H, Ueno H, Ulmer PE, Urciuoli GM, Vernin P, van Verst S, Vlahovic B, Voskanyan H, Watson JW, Weinstein LB, Wijesooriya K, Wilson R, Wojtsekhowski B, Zainea DG, Zeps V, Zhao J, Zhou ZL. Dynamics of the 16O(e, e'p) reaction at high missing energies. Phys Rev Lett 2001; 86:5670-5674. [PMID: 11415329 DOI: 10.1103/physrevlett.86.5670] [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: 09/07/2000] [Indexed: 05/23/2023]
Abstract
We measured the cross section and response functions for the quasielastic 16O(e,e'p) reaction for missing energies 25< or =E(m)< or =120 MeV at missing momenta P(m)< or =340 MeV/c. For 25<E(m)<50 MeV and P(m) approximately 60 MeV/c, the reaction is dominated by a single 1s(1/2) proton knockout. At larger P(m), the single-particle aspects are increasingly masked by more complicated processes. Calculations which include pion exchange currents, isobar currents, and short-range correlations account for the shape and the transversity, but for only half of the magnitude of the measured cross section.
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Affiliation(s)
- N Liyanage
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
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Blatchley CC, LeRose JJ, Pruet OE, Zimmerman AP, Williamson CF, Deady M. Quasi-elastic electron scattering from 238U. Phys Rev C Nucl Phys 1986; 34:1243-1247. [PMID: 9953578 DOI: 10.1103/physrevc.34.1243] [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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