Measurement of unpolarized and polarized cross sections for deeply virtual Compton scattering on the proton at Jefferson Laboratory with CLAS

Hirlinger Saylor, N.; Guegan, B.; Burkert, V. D.; Elouadrhiri, L.; Garçon, M.; Girod, F. X.; Guidal, M.; Jo, H. S.; Kubarovsky, V.; Niccolai, S.; Stoler, P.; Adhikari, K. P.; Adhikari, S.; Akbar, Z.; Amaryan, M. J.; Pereira, S. Anefalos; Ball, J.; Balossino, I.; Baltzell, N. A.; Barion, L.; Battaglieri, M.; Batourine, V.; Bedlinskiy, I.; Biselli, A. S.; Boiarinov, S.; Briscoe, W. J.; Brooks, W. K.; Bültmann, S.; Cao, F.; Carman, D. S.; Celentano, A.; Charles, G.; Chetry, T.; Ciullo, G.; Clary, Brandon A.; Cole, P. L.; Contalbrigo, M.; Cortes, O.; D'Angelo, A.; Dashyan, N.; De Vita, R.; Defurne, M.; Deur, A.; Diehl, S.; Djalali, C.; Dupre, R.; Egiyan, H.; Alaoui, A. El; Fassi, L. El; Eugenio, P.; Fedotov, G.; Fersch, R.; Filippi, A.; Forest, T. A.; Fradi, A.; Gavalian, G.; Gevorgyan, N.; Ghandilyan, Y.; Gilfoyle, G. P.; Giovanetti, K. L.; Gleason, C.; Gohn, W.; Golovatch, E.; Gothe, R. W.; Griffioen, K. A.; Guo, L.; Hafidi, K.; Hakobyan, H.; Hanretty, C.; Harrison, N.; Hattawy, M.; Heddle, D.; Hicks, K.; Holtrop, M.; Ilieva, Y.; Ireland, D. G.; Ishkhanov, B. S.; Isupov, E. L.; Jenkins, D.; Johnston, S.; Joo, K.; Joosten, S.; Kabir, M. L.; Keller, D.; Khachatryan, G.; Khachatryan, M.; Khandaker, M.; Kim, A.; Kim, W.; Klein, A.; Klein, F. J.; Kuhn, S. E.; Kuleshov, S. V.; Lanza, L.; Lenisa, P.; Livingston, K.; Lu, H. Y.; MacGregor, I. J. D.; Markov, N.; McCracken, M. E.; McKinnon, B.; Meyer, C. A.; Meziani, Z. E.; Mineeva, T.; Mirazita, M.; Mokeev, V.; Montgomery, R. A.; Movsisyan, A.; Camacho, C. Munoz; Nadel-Turonski, P.; Niculescu, G.; Osipenko, M.; Ostrovidov, A. I.; Paolone, M.; Paremuzyan, R.; Park, K.; Pasyuk, E.; Phelps, W.; Pogorelko, O.; Price, J. W.; Procureur, S.; Prok, Y.; Protopopescu, D.; Ripani, M.; Riser, D.; Rizzo, A.; Rosner, G.; Rossi, P.; Sabatié, F.; Salgado, C.; Schumacher, R. A.; Sharabian, Y. G.; Skorodumina, Iu.; Smith, G. D.; Sparveris, N.; Stepanyan, S.; Strauch, S.; Taiuti, M.; Tan, J. A.; Ungaro, M.; Voskanyan, H.; Voutier, E.; Watts, D. P.; Wei, X.; Wood, M. H.; Zachariou, N.; Zhang, J.; Zhao, Z. W.

doi:10.1103/PhysRevC.98.045203

Title: Measurement of unpolarized and polarized cross sections for deeply virtual Compton scattering on the proton at Jefferson Laboratory with CLAS

Journal Article · Tue Oct 09 00:00:00 EDT 2018 · Physical Review. C

DOI:https://doi.org/10.1103/PhysRevC.98.045203· OSTI ID:1477577

Hirlinger Saylor, N.; Guegan, B.; Burkert, V. D.; Elouadrhiri, L.; Garçon, M.; Girod, F. X.; Guidal, M.; Jo, H. S.; Kubarovsky, V.; Niccolai, S.; Stoler, P.; Adhikari, K. P.; Adhikari, S.; Akbar, Z.; Amaryan, M. J.; Pereira, S. Anefalos; Ball, J.; Balossino, I.; Baltzell, N. A.; Barion, L. more »

This paper reports the measurement of polarized and unpolarized cross sections for the ep ! e0p0 reaction, which is comprised of Deeply Virtual Compton Scattering (DVCS) and Bethe-Heitler (BH) processes, at an electron beam energy of 5.88 GeV at the Thomas Jefferson National Accelerator Facility using the Large Acceptance Spectrometer CLAS. The unpolarized cross sections and polarized cross section differences have been measured over broad kinematics, 0.10 < x_B < 0.58, 1.0 < Q² < 4.8 GeV2, and 0:09 < -t < 2.00 GeV2. The results are found to be consistent with previous CLAS data, and these new data are discussed in the framework of the generalized parton distribution approach. Calculations with two widely used phenomenological models, denoted VGG and KMSC, are approximately compatible with the experimental results over a large portion of the kinematic range of the data.

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Research Organization:: Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States); The George Washington Univ., Ashburn, VA (United States); Mississippi State Univ., Mississippi State, MS (United States); Argonne National Laboratory (ANL), Argonne, IL (United States)

Sponsoring Organization:: USDOE Office of Science (SC), Nuclear Physics (NP)

Contributing Organization:: CLAS Collaboration

Grant/Contract Number:: AC05-06OR23177; AC05-84ER40150; SC0016583; FG02-07ER41528; AC02-06CH11357

OSTI ID:: 1477577

Alternate ID(s):: OSTI ID: 1477474; OSTI ID: 1478667; OSTI ID: 1490427

Report Number(s):: JLAB-PHY-18-2853; DOE/OR/23177-4557; arXiv:1810.02110; PRVCAN; 045203

Journal Information:: Physical Review. C, Journal Name: Physical Review. C Vol. 98 Journal Issue: 4; ISSN 2469-9985

Publisher:: American Physical Society (APS)Copyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 11 works

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