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Abeysekara AU, Archambault S, Archer A, Aune T, Barnacka A, Benbow W, Bird R, Biteau J, Buckley JH, Bugaev V, Cardenzana JV, Cerruti M, Chen X, Christiansen JL, Ciupik L, Connolly MP, Coppi P, Cui W, Dickinson HJ, Dumm J, Eisch JD, Errando M, Falcone A, Feng Q, Finley JP, Fleischhack H, Flinders A, Fortin P, Fortson L, Furniss A, Gillanders GH, Griffin S, Grube J, Gyuk G, Hütten M, Håkansson N, Hanna D, Holder J, Humensky TB, Johnson CA, Kaaret P, Kar P, Kelley-Hoskins N, Khassen Y, Kieda D, Krause M, Krennrich F, Kumar S, Lang MJ, Maier G, McArthur S, McCann A, Meagher K, Moriarty P, Mukherjee R, Nieto D, Bhróithe AOD, Ong RA, Otte AN, Park N, Perkins JS, Petrashyk A, Pohl M, Popkow A, Pueschel E, Quinn J, Ragan K, Ratliff G, Reynolds PT, Richards GT, Roache E, Rousselle J, Santander M, Sembroski GH, Shahinyan K, Smith AW, Staszak D, Telezhinsky I, Todd NW, Tucci JV, Tyler J, Vassiliev VV, Vincent S, Wakely SP, Weiner OM, Weinstein A, Wilhelm A, Williams DA, Zitzer B, Smith PS, Holoien TWS, Prieto JL, Kochanek CS, Stanek KZ, Shappee B, Hovatta T, Max-Moerbeck W, Pearson TJ, Reeves RA, Richards JL, Readhead ACS, Madejski GM, Djorgovski SG, Drake AJ, Graham MJ, Mahabal A. GAMMA-RAYS FROM THE QUASAR PKS 1441+25: STORY OF AN ESCAPE. ACTA ACUST UNITED AC 2015. [DOI: 10.1088/2041-8205/815/2/l22] [Citation(s) in RCA: 64] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Aliu E, Arlen T, Aune T, Beilicke M, Benbow W, Bouvier A, Bradbury SM, Buckley JH, Bugaev V, Byrum K, Cannon A, Cesarini A, Christiansen JL, Ciupik L, Collins-Hughes E, Connolly MP, Cui W, Dickherber R, Duke C, Errando M, Falcone A, Finley JP, Finnegan G, Fortson L, Furniss A, Galante N, Gall D, Gibbs K, Gillanders GH, Godambe S, Griffin S, Grube J, Guenette R, Gyuk G, Hanna D, Holder J, Huan H, Hughes G, Hui CM, Humensky TB, Imran A, Kaaret P, Karlsson N, Kertzman M, Kieda D, Krawczynski H, Krennrich F, Lang MJ, Lyutikov M, Madhavan AS, Maier G, Majumdar P, McArthur S, McCann A, McCutcheon M, Moriarty P, Mukherjee R, Nuñez P, Ong RA, Orr M, Otte AN, Park N, Perkins JS, Pizlo F, Pohl M, Prokoph H, Quinn J, Ragan K, Reyes LC, Reynolds PT, Roache E, Rose HJ, Ruppel J, Saxon DB, Schroedter M, Sembroski GH, Şentürk GD, Smith AW, Staszak D, Tešić G, Theiling M, Thibadeau S, Tsurusaki K, Tyler J, Varlotta A, Vassiliev VV, Vincent S, Vivier M, Wakely SP, Ward JE, Weekes TC, Weinstein A, Weisgarber T, Williams DA, Zitzer B. Detection of Pulsed Gamma Rays Above 100 GeV from the Crab Pulsar. Science 2011; 334:69-72. [DOI: 10.1126/science.1208192] [Citation(s) in RCA: 142] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Affiliation(s)
| | - E. Aliu
- Department of Physics and Astronomy, Barnard College, Columbia University, NY 10027, USA
| | - T. Arlen
- Department of Physics and Astronomy, University of California, Los Angeles, CA 90095, USA
| | - T. Aune
- Santa Cruz Institute for Particle Physics and Department of Physics, University of California, Santa Cruz, Santa Cruz, CA 95064, USA
| | - M. Beilicke
- Department of Physics, Washington University, St. Louis, MO 63130, USA
| | - W. Benbow
- Fred Lawrence Whipple Observatory, Harvard-Smithsonian Center for Astrophysics, Amado, AZ 85645, USA
| | - A. Bouvier
- Santa Cruz Institute for Particle Physics and Department of Physics, University of California, Santa Cruz, Santa Cruz, CA 95064, USA
| | - S. M. Bradbury
- School of Physics and Astronomy, University of Leeds, Leeds LS2 9JT, UK
| | - J. H. Buckley
- Department of Physics, Washington University, St. Louis, MO 63130, USA
| | - V. Bugaev
- Department of Physics, Washington University, St. Louis, MO 63130, USA
| | - K. Byrum
- Argonne National Laboratory, 9700 South Cass Avenue, Argonne, IL 60439, USA
| | - A. Cannon
- School of Physics, University College Dublin, Belfield, Dublin 4, Ireland
| | - A. Cesarini
- School of Physics, National University of Ireland Galway, University Road, Galway, Ireland
| | - J. L. Christiansen
- Physics Department, California Polytechnic State University, San Luis Obispo, CA 94307, USA
| | - L. Ciupik
- Astronomy Department, Adler Planetarium and Astronomy Museum, Chicago, IL 60605, USA
| | - E. Collins-Hughes
- School of Physics, University College Dublin, Belfield, Dublin 4, Ireland
| | - M. P. Connolly
- School of Physics, National University of Ireland Galway, University Road, Galway, Ireland
| | - W. Cui
- Department of Physics, Purdue University, West Lafayette, IN 47907, USA
| | - R. Dickherber
- Department of Physics, Washington University, St. Louis, MO 63130, USA
| | - C. Duke
- Department of Physics, Grinnell College, Grinnell, IA 50112–1690, USA
| | - M. Errando
- Department of Physics and Astronomy, Barnard College, Columbia University, NY 10027, USA
| | - A. Falcone
- Department of Astronomy and Astrophysics, 525 Davey Lab, Pennsylvania State University, University Park, PA 16802, USA
| | - J. P. Finley
- Department of Physics, Purdue University, West Lafayette, IN 47907, USA
| | - G. Finnegan
- Department of Physics and Astronomy, University of Utah, Salt Lake City, UT 84112, USA
| | - L. Fortson
- School of Physics and Astronomy, University of Minnesota, Minneapolis, MN 55455, USA
| | - A. Furniss
- Santa Cruz Institute for Particle Physics and Department of Physics, University of California, Santa Cruz, Santa Cruz, CA 95064, USA
| | - N. Galante
- Fred Lawrence Whipple Observatory, Harvard-Smithsonian Center for Astrophysics, Amado, AZ 85645, USA
| | - D. Gall
- Department of Physics and Astronomy, University of Iowa, Van Allen Hall, Iowa City, IA 52242, USA
| | - K. Gibbs
- Fred Lawrence Whipple Observatory, Harvard-Smithsonian Center for Astrophysics, Amado, AZ 85645, USA
| | - G. H. Gillanders
- School of Physics, National University of Ireland Galway, University Road, Galway, Ireland
| | - S. Godambe
- Department of Physics and Astronomy, University of Utah, Salt Lake City, UT 84112, USA
| | - S. Griffin
- Physics Department, McGill University, Montreal, Quebec H3A 2T8, Canada
| | - J. Grube
- Astronomy Department, Adler Planetarium and Astronomy Museum, Chicago, IL 60605, USA
| | - R. Guenette
- Physics Department, McGill University, Montreal, Quebec H3A 2T8, Canada
| | - G. Gyuk
- Astronomy Department, Adler Planetarium and Astronomy Museum, Chicago, IL 60605, USA
| | - D. Hanna
- Physics Department, McGill University, Montreal, Quebec H3A 2T8, Canada
| | - J. Holder
- Department of Physics and Astronomy and the Bartol Research Institute, University of Delaware, Newark, DE 19716, USA
| | - H. Huan
- Enrico Fermi Institute, University of Chicago, Chicago, IL 60637, USA
| | - G. Hughes
- Deutsches Elektronen Synchrotron, Platanenallee 6, 15738 Zeuthen, Germany
| | - C. M. Hui
- Department of Physics and Astronomy, University of Utah, Salt Lake City, UT 84112, USA
| | - T. B. Humensky
- Enrico Fermi Institute, University of Chicago, Chicago, IL 60637, USA
| | - A. Imran
- Department of Physics and Astronomy, Iowa State University, Ames, IA 50011, USA
| | - P. Kaaret
- Department of Physics and Astronomy, University of Iowa, Van Allen Hall, Iowa City, IA 52242, USA
| | - N. Karlsson
- School of Physics and Astronomy, University of Minnesota, Minneapolis, MN 55455, USA
| | - M. Kertzman
- Department of Physics and Astronomy, DePauw University, Greencastle, IN 46135–0037, USA
| | - D. Kieda
- Department of Physics and Astronomy, University of Utah, Salt Lake City, UT 84112, USA
| | - H. Krawczynski
- Department of Physics, Washington University, St. Louis, MO 63130, USA
| | - F. Krennrich
- Department of Physics and Astronomy, Iowa State University, Ames, IA 50011, USA
| | - M. J. Lang
- School of Physics, National University of Ireland Galway, University Road, Galway, Ireland
| | - M. Lyutikov
- Department of Physics, Purdue University, West Lafayette, IN 47907, USA
| | - A. S Madhavan
- Department of Physics and Astronomy, Iowa State University, Ames, IA 50011, USA
| | - G. Maier
- Deutsches Elektronen Synchrotron, Platanenallee 6, 15738 Zeuthen, Germany
| | - P. Majumdar
- Department of Physics and Astronomy, University of California, Los Angeles, CA 90095, USA
| | - S. McArthur
- Department of Physics, Washington University, St. Louis, MO 63130, USA
| | - A. McCann
- Physics Department, McGill University, Montreal, Quebec H3A 2T8, Canada
| | - M. McCutcheon
- Physics Department, McGill University, Montreal, Quebec H3A 2T8, Canada
| | - P. Moriarty
- Department of Life and Physical Sciences, Galway-Mayo Institute of Technology, Dublin Road, Galway, Ireland
| | - R. Mukherjee
- Department of Physics and Astronomy, Barnard College, Columbia University, NY 10027, USA
| | - P. Nuñez
- Department of Physics and Astronomy, University of Utah, Salt Lake City, UT 84112, USA
| | - R. A. Ong
- Department of Physics and Astronomy, University of California, Los Angeles, CA 90095, USA
| | - M. Orr
- Department of Physics and Astronomy, Iowa State University, Ames, IA 50011, USA
| | - A. N. Otte
- Santa Cruz Institute for Particle Physics and Department of Physics, University of California, Santa Cruz, Santa Cruz, CA 95064, USA
| | - N. Park
- Enrico Fermi Institute, University of Chicago, Chicago, IL 60637, USA
| | - J. S. Perkins
- Fred Lawrence Whipple Observatory, Harvard-Smithsonian Center for Astrophysics, Amado, AZ 85645, USA
| | - F. Pizlo
- Department of Physics, Purdue University, West Lafayette, IN 47907, USA
| | - M. Pohl
- Deutsches Elektronen Synchrotron, Platanenallee 6, 15738 Zeuthen, Germany
- Institut für Physik und Astronomie, Universität Potsdam, 14476 Potsdam-Golm, Germany
| | - H. Prokoph
- Deutsches Elektronen Synchrotron, Platanenallee 6, 15738 Zeuthen, Germany
| | - J. Quinn
- School of Physics, University College Dublin, Belfield, Dublin 4, Ireland
| | - K. Ragan
- Physics Department, McGill University, Montreal, Quebec H3A 2T8, Canada
| | - L. C. Reyes
- Enrico Fermi Institute, University of Chicago, Chicago, IL 60637, USA
| | - P. T. Reynolds
- Department of Applied Physics and Instrumentation, Cork Institute of Technology, Bishopstown, Cork, Ireland
| | - E. Roache
- Fred Lawrence Whipple Observatory, Harvard-Smithsonian Center for Astrophysics, Amado, AZ 85645, USA
| | - H. J. Rose
- School of Physics and Astronomy, University of Leeds, Leeds LS2 9JT, UK
| | - J. Ruppel
- Institut für Physik und Astronomie, Universität Potsdam, 14476 Potsdam-Golm, Germany
| | - D. B. Saxon
- Department of Physics and Astronomy and the Bartol Research Institute, University of Delaware, Newark, DE 19716, USA
| | - M. Schroedter
- Fred Lawrence Whipple Observatory, Harvard-Smithsonian Center for Astrophysics, Amado, AZ 85645, USA
| | - G. H. Sembroski
- Department of Physics, Purdue University, West Lafayette, IN 47907, USA
| | - G. D. Şentürk
- Department of Physics, Columbia University, New York, NY 10027
| | - A. W. Smith
- Argonne National Laboratory, 9700 South Cass Avenue, Argonne, IL 60439, USA
| | - D. Staszak
- Physics Department, McGill University, Montreal, Quebec H3A 2T8, Canada
| | - G. Tešić
- Physics Department, McGill University, Montreal, Quebec H3A 2T8, Canada
| | - M. Theiling
- Department of Physics, Purdue University, West Lafayette, IN 47907, USA
| | - S. Thibadeau
- Department of Physics, Washington University, St. Louis, MO 63130, USA
| | - K. Tsurusaki
- Department of Physics and Astronomy, University of Iowa, Van Allen Hall, Iowa City, IA 52242, USA
| | - J. Tyler
- Physics Department, McGill University, Montreal, Quebec H3A 2T8, Canada
| | - A. Varlotta
- Department of Physics, Purdue University, West Lafayette, IN 47907, USA
| | - V. V. Vassiliev
- Department of Physics and Astronomy, University of California, Los Angeles, CA 90095, USA
| | - S. Vincent
- Department of Physics and Astronomy, University of Utah, Salt Lake City, UT 84112, USA
| | - M. Vivier
- Department of Physics and Astronomy and the Bartol Research Institute, University of Delaware, Newark, DE 19716, USA
| | - S. P. Wakely
- Enrico Fermi Institute, University of Chicago, Chicago, IL 60637, USA
| | - J. E. Ward
- School of Physics, University College Dublin, Belfield, Dublin 4, Ireland
| | - T. C. Weekes
- Fred Lawrence Whipple Observatory, Harvard-Smithsonian Center for Astrophysics, Amado, AZ 85645, USA
| | - A. Weinstein
- Department of Physics and Astronomy, Iowa State University, Ames, IA 50011, USA
| | - T. Weisgarber
- Enrico Fermi Institute, University of Chicago, Chicago, IL 60637, USA
| | - D. A. Williams
- Santa Cruz Institute for Particle Physics and Department of Physics, University of California, Santa Cruz, Santa Cruz, CA 95064, USA
| | - B. Zitzer
- Argonne National Laboratory, 9700 South Cass Avenue, Argonne, IL 60439, USA
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Acciari VA, Aliu E, Arlen T, Bautista M, Beilicke M, Benbow W, Bradbury SM, Buckley JH, Bugaev V, Butt Y, Byrum K, Cannon A, Celik O, Cesarini A, Chow YC, Ciupik L, Cogan P, Cui W, Dickherber R, Fegan SJ, Finley JP, Fortin P, Fortson L, Furniss A, Gall D, Gillanders GH, Grube J, Guenette R, Gyuk G, Hanna D, Holder J, Horan D, Hui CM, Humensky TB, Imran A, Kaaret P, Karlsson N, Kieda D, Kildea J, Konopelko A, Krawczynski H, Krennrich F, Lang MJ, LeBohec S, Maier G, McCann A, McCutcheon M, Millis J, Moriarty P, Ong RA, Otte AN, Pandel D, Perkins JS, Petry D, Pohl M, Quinn J, Ragan K, Reyes LC, Reynolds PT, Roache E, Roache E, Rose HJ, Schroedter M, Sembroski GH, Smith AW, Swordy SP, Theiling M, Toner JA, Varlotta A, Vincent S, Wakely SP, Ward JE, Weekes TC, Weinstein A, Williams DA, Wissel S, Wood M, Walker RC, Davies F, Hardee PE, Junor W, Ly C, Aharonian F, Akhperjanian AG, Anton G, Barres de Almeida U, Bazer-Bachi AR, Becherini Y, Behera B, Bernlöhr K, Bochow A, Boisson C, Bolmont J, Borrel V, Brucker J, Brun F, Brun P, Bühler R, Bulik T, Büsching I, Boutelier T, Chadwick PM, Charbonnier A, Chaves RCG, Cheesebrough A, Chounet LM, Clapson AC, Coignet G, Dalton M, Daniel MK, Davids ID, Degrange B, Deil C, Dickinson HJ, Djannati-Ataï A, Domainko W, Drury LO, Dubois F, Dubus G, Dyks J, Dyrda M, Egberts K, Emmanoulopoulos D, Espigat P, Farnier C, Feinstein F, Fiasson A, Förster A, Fontaine G, Füssling M, Gabici S, Gallant YA, Gérard L, Gerbig D, Giebels B, Glicenstein JF, Glück B, Goret P, Göhring D, Hauser D, Hauser M, Heinz S, Heinzelmann G, Henri G, Hermann G, Hinton JA, Hoffmann A, Hofmann W, Holleran M, Hoppe S, Horns D, Jacholkowska A, de Jager OC, Jahn C, Jung I, Katarzyński K, Katz U, Kaufmann S, Kendziorra E, Kerschhaggl M, Khangulyan D, Khélifi B, Keogh D, Kluźniak W, Kneiske T, Komin N, Kosack K, Lamanna G, Lenain JP, Lohse T, Marandon V, Martin JM, Martineau-Huynh O, Marcowith A, Maurin D, McComb TJL, Medina MC, Moderski R, Moulin E, Naumann-Godo M, de Naurois M, Nedbal D, Nekrassov D, Nicholas B, Niemiec J, Nolan SJ, Ohm S, Olive JF, de Oña Wilhelmi E, Orford KJ, Ostrowski M, Panter M, Paz Arribas M, Pedaletti G, Pelletier G, Petrucci PO, Pita S, Pühlhofer G, Punch M, Quirrenbach A, Raubenheimer BC, Raue M, Rayner SM, Renaud M, Rieger F, Ripken J, Rob L, Rosier-Lees S, Rowell G, Rudak B, Rulten CB, Ruppel J, Sahakian V, Santangelo A, Schlickeiser R, Schöck FM, Schröder R, Schwanke U, Schwarzburg S, Schwemmer S, Shalchi A, Sikora M, Skilton JL, Sol H, Spangler D, Stawarz Ł, Steenkamp R, Stegmann C, Stinzing F, Superina G, Szostek A, Tam PH, Tavernet JP, Terrier R, Tibolla O, Tluczykont M, van Eldik C, Vasileiadis G, Venter C, Venter L, Vialle JP, Vincent P, Vivier M, Völk HJ, Volpe F, Wagner SJ, Ward M, Zdziarski AA, Zech A, Anderhub H, Antonelli LA, Antoranz P, Backes M, Baixeras C, Balestra S, Barrio JA, Bastieri D, Becerra González J, Becker JK, Bednarek W, Berger K, Bernardini E, Biland A, Bock RK, Bonnoli G, Bordas P, Borla Tridon D, Bosch-Ramon V, Bose D, Braun I, Bretz T, Britvitch I, Camara M, Carmona E, Commichau S, Contreras JL, Cortina J, Costado MT, Covino S, Curtef V, Dazzi F, De Angelis A, De Cea del Pozo E, Delgado Mendez C, De los Reyes R, De Lotto B, De Maria M, De Sabata F, Dominguez A, Dorner D, Doro M, Elsaesser D, Errando M, Ferenc D, Fernández E, Firpo R, Fonseca MV, Font L, Galante N, García López RJ, Garczarczyk M, Gaug M, Goebel F, Hadasch D, Hayashida M, Herrero A, Hildebrand D, Höhne-Mönch D, Hose J, Hsu CC, Jogler T, Kranich D, La Barbera A, Laille A, Leonardo E, Lindfors E, Lombardi S, Longo F, López M, Lorenz E, Majumdar P, Maneva G, Mankuzhiyil N, Mannheim K, Maraschi L, Mariotti M, Martínez M, Mazin D, Meucci M, Miranda JM, Mirzoyan R, Miyamoto H, Moldón J, Moles M, Moralejo A, Nieto D, Nilsson K, Ninkovic J, Oya I, Paoletti R, Paredes JM, Pasanen M, Pascoli D, Pauss F, Pegna RG, Perez-Torres MA, Persic M, Peruzzo L, Prada F, Prandini E, Puchades N, Reichardt I, Rhode W, Ribó M, Rico J, Rissi M, Robert A, Rügamer S, Saggion A, Saito TY, Salvati M, Sanchez-Conde M, Satalecka K, Scalzotto V, Scapin V, Schweizer T, Shayduk M, Shore SN, Sidro N, Sierpowska-Bartosik A, Sillanpää A, Sitarek J, Sobczynska D, Spanier F, Stamerra A, Stark LS, Takalo L, Tavecchio F, Temnikov P, Tescaro D, Teshima M, Torres DF, Turini N, Vankov H, Wagner RM, Zabalza V, Zandanel F, Zanin R, Zapatero J. Radio Imaging of the Very-High-Energy γ-Ray Emission Region in the Central Engine of a Radio Galaxy. Science 2009; 325:444-8. [PMID: 19574351 DOI: 10.1126/science.1175406] [Citation(s) in RCA: 157] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Aniol KA, Armstrong DS, Averett T, Benaoum H, Bertin PY, Burtin E, Cahoon J, Cates GD, Chang CC, Chao YC, Chen JP, Choi S, Chudakov E, Craver B, Cusanno F, Decowski P, Deepa D, Ferdi C, Feuerbach RJ, Finn JM, Frullani S, Fuoti K, Garibaldi F, Gilman R, Glamazdin A, Gorbenko V, Grames JM, Hansknecht J, Higinbotham DW, Holmes R, Holmstrom T, Humensky TB, Ibrahim H, de Jager CW, Jiang X, Kaufman LJ, Kelleher A, Kolarkar A, Kowalski S, Kumar KS, Lambert D, LaViolette P, LeRose J, Lhuillier D, Liyanage N, Margaziotis DJ, Mazouz M, McCormick K, Meekins DG, Meziani ZE, Michaels R, Moffit B, Monaghan P, Munoz-Camacho C, Nanda S, Nelyubin V, Neyret D, Paschke KD, Poelker M, Pomatsalyuk R, Qiang Y, Reitz B, Roche J, Saha A, Singh J, Snyder R, Souder PA, Subedi R, Suleiman R, Sulkosky V, Tobias WA, Urciuoli GM, Vacheret A, Voutier E, Wang K, Wilson R, Wojtsekhowski B, Zheng X. Parity-violating electron scattering from 4He and the strange electric form factor of the nucleon. Phys Rev Lett 2006; 96:022003. [PMID: 16486563 DOI: 10.1103/physrevlett.96.022003] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2005] [Indexed: 05/06/2023]
Abstract
We have measured the parity-violating electroweak asymmetry in the elastic scattering of polarized electrons from 4He at an average scattering angle <theta(lab)> = 5.7 degrees and a four-momentum transfer Q2 = 0.091 GeV2 . From these data, for the first time, the strange electric form factor of the nucleon G(E)s can be isolated. The measured asymmetry of A(PV) = (6.72 +/- 0.84(stat) +/- 0.21(syst) x 10(-6) yields a value of G(E)s = -0.038 +/- 0.042(stat) +/- 0.010(syst), consistent with zero.
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Affiliation(s)
- K A Aniol
- California State University, Los Angeles, Los Angeles, California 90032, USA
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Anthony PL, Arnold RG, Arroyo C, Bega K, Biesiada J, Bosted PE, Bower G, Cahoon J, Carr R, Cates GD, Chen JP, Chudakov E, Cooke M, Decowski P, Deur A, Emam W, Erickson R, Fieguth T, Field C, Gao J, Gary M, Gustafsson K, Hicks RS, Holmes R, Hughes EW, Humensky TB, Jones GM, Kaufman LJ, Keller L, Kolomensky YG, Kumar KS, LaViolette P, Lhuillier D, Lombard-Nelsen RM, Marshall Z, Mastromarino P, McKeown RD, Michaels R, Niedziela J, Olson M, Paschke KD, Peterson GA, Pitthan R, Relyea D, Rock SE, Saxton O, Singh J, Souder PA, Szalata ZM, Turner J, Tweedie B, Vacheret A, Walz D, Weber T, Weisend J, Woods M, Younus I. Precision measurement of the weak mixing angle in Møller scattering. Phys Rev Lett 2005; 95:081601. [PMID: 16196849 DOI: 10.1103/physrevlett.95.081601] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2005] [Indexed: 05/04/2023]
Abstract
We report on a precision measurement of the parity-violating asymmetry in fixed target electron-electron (Møller) scattering: A(PV) = [-131 +/- 14(stat) +/- 10(syst)] x 10(-9), leading to the determination of the weak mixing angle sin2(thetaW(eff) = 0.2397 +/- 0.0010(stat) +/- 0.0008(syst), evaluated at Q2 = 0.026 GeV2. Combining this result with the measurements of sin2(thetaW(eff) at the Z0 pole, the running of the weak mixing angle is observed with over 6sigma significance. The measurement sets constraints on new physics effects at the TeV scale.
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Affiliation(s)
- P L Anthony
- Stanford Linear Accelerator Center, Menlo Park, California 94025, USA
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6
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Anthony PL, Arnold RG, Arroyo C, Baird K, Bega K, Biesiada J, Bosted PE, Breuer M, Carr R, Cates GD, Chen JP, Chudakov E, Cooke M, Decker FJ, Decowski P, Deur A, Emam W, Erickson R, Fieguth T, Field C, Gao J, Gustafsson K, Hicks RS, Holmes R, Hughes EW, Humensky TB, Jones GM, Kaufman LJ, Kolomensky YG, Kumar KS, Lhuillier D, Lombard-Nelsen R, Mastromarino P, Mayer B, McKeown RD, Michaels R, Olson M, Paschke KD, Peterson GA, Pitthan R, Pope K, Relyea D, Rock SE, Saxton O, Shapiro G, Singh J, Souder PA, Szalata ZM, Tobias WA, Tonguc BT, Turner J, Tweedie B, Vacheret A, Walz D, Weber T, Weisend J, Whittum D, Woods M, Younus I. Observation of parity nonconservation in møller scattering. Phys Rev Lett 2004; 92:181602. [PMID: 15169482 DOI: 10.1103/physrevlett.92.181602] [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: 12/11/2003] [Indexed: 05/24/2023]
Abstract
We report a measurement of the parity-violating asymmetry in fixed target electron-electron (Møller) scattering: A(PV)=[-175+/-30(stat)+/-20(syst)] x 10(-9). This first direct observation of parity nonconservation in Møller scattering leads to a measurement of the electron's weak charge at low energy Q(e)(W)=-0.053+/-0.011. This is consistent with the standard model expectation at the current level of precision: sin((2)theta(W)(M(Z))((-)MS)=0.2293+/-0.0024(stat)+/-0.0016(syst)+/-0.0006(theory).
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Affiliation(s)
- P L Anthony
- Stanford Linear Accelerator Center, Menlo Park, CA 94025, USA
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Amarian M, Auerbach L, Averett T, Berthot J, Bertin P, Bertozzi W, Black T, Brash E, Brown D, Burtin E, Calarco JR, Cates GD, Chai Z, Chen JP, Choi S, Chudakov E, Cisbani E, De Jager CW, Deur A, DiSalvo R, Dieterich S, Djawotho P, Finn M, Fissum K, Fonvieille H, Frullani S, Gao H, Gao J, Garibaldi F, Gasparian A, Gilad S, Gilman R, Glamazdin A, Glashausser C, Goldberg E, Gomez J, Gorbenko V, Hansen JO, Hersman FW, Holmes R, Huber GM, Hughes EW, Humensky TB, Incerti S, Iodice M, Jensen S, Jiang X, Jones C, Jones GM, Jones M, Jutier C, Ketikyan A, Kominis I, Korsch W, Kramer K, Kumar KS, Kumbartzki G, Kuss M, Lakuriqi E, Laveissiere G, Lerose J, Liang M, Liyanage N, Lolos G, Malov S, Marroncle J, McCormick K, McKeown R, Meziani ZE, Michaels R, Mitchell J, Papandreou Z, Pavlin T, Petratos GG, Pripstein D, Prout D, Ransome R, Roblin Y, Rowntree D, Rvachev M, Sabatie F, Saha A, Slifer K, Souder PA, Saito T, Strauch S, Suleiman R, Takahashi K, Teijiro S, Todor L, Tsubota H, Ueno H, Urciuoli G, Van Der Meer R, Vernin P, Voskanian H, Wojtsekhowski B, Xiong F, Xu W, Yang JC, Zhang B, Zolnierczuk P. Q2 evolution of the generalized Gerasimov-Drell-Hearn integral for the neutron using a 3He target. Phys Rev Lett 2002; 89:242301. [PMID: 12484938 DOI: 10.1103/physrevlett.89.242301] [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: 05/15/2002] [Indexed: 05/24/2023]
Abstract
We present data on the inclusive scattering of polarized electrons from a polarized 3He target at energies from 0.862 to 5.06 GeV, obtained at a scattering angle of 15.5 degrees. Our data include measurements from the quasielastic peak, through the nucleon resonance region, and beyond, and were used to determine the virtual photon cross-section difference sigma(1/2)-sigma(3/2). We extract the extended Gerasimov-Drell-Hearn integral for the neutron in the range of four-momentum transfer squared Q2 of 0.1-0.9 GeV2.
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Affiliation(s)
- M Amarian
- Istituto Nazionale di Fiscica Nucleare, Sezione Sanità, 00161 Roma, Italy
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