Beam-helicity and beam-charge asymmetries associated with deeply virtual Compton scattering on the unpolarised proton

Airapetian, A. and Akopov, N. and Akopov, Z. and Aschenauer, E. C. and Augustyniak, W. and Avakian, R. and Avetissian, A. and Avetisyan, E. and Blok, H. P. and Borissov, A. and Bowles, J. and Bryzgalov, V. and Burns, J. and Capiluppi, M. and Capitani, G. P. and Cisbani, E. and Ciullo, G. and Contalbrigo, M. and Dalpiaz, P. F. and Deconinck, W. and Leo, De and De Nardo, L. and De Sanctis, E. and Diefenthaler, M. and Di Nezza, P. and Dueren, M. and Ehrenfried, M. and Elbakian, G. and Ellinghaus, F. and Fabbri, R. and Fantoni, A. and Felawka, L. and Frullani, S. and Gabbert, D. and Gapienko, G. and Gapienko, V. and Garibaldi, F. and Gavrilov, G. and Giordano, F. and Gliske, S. and Golembiovskaya, M. and Hadjidakis, C. and Hartig, M. and Hasch, D. and Hoek, M. and Holler, Y. and Imazu, Y. and Jackson, H. E. and Jo, H. S. and Kaiser, R. and Karyan, G. and Keri, T. and Kinney, E. and Kisselev, A. and Kobayashi, N. and Korotkov, V. and Kozlov, V. and Kravchenko, P. and Krivokhijine, V. G. and Lagamba, L. and Lapikas, L. and Lehmann, I. and Lenisa, P. and Lorenzon, W. and Ma, B-Q. and Mahon, D. and Makins, N. C. R. and Manaenkov, S. I. and Manfre, L. and Mao, Y. and Marianski, B. and de la Ossa, A. Martinez and Marukyan, H. and Miller, C. A. and Miyachi, Y. and Movsisyan, A. and Muccifora, V. and Murray, M. and Mussgiller, A. and Nappi, E. and Naryshkin, Y. and Nass, A. and Nowak, W-D. and Pappalardo, L. L. and Perez-Benito, R. and Petrosyan, A. and Raithel, M. and Reimer, P. E. and Reolon, A. R. and Riedl, C. and Rith, K. and Rosner, G. and Rostomyan, A. and Rubin, J. and Ryckbosch, D. and Salomatin, Y. and Sanftl, F. and Schaefer, A. and Schnell, G. and Schueler, K. P. and Seitz, B. and Shibata, T-A. and Shutov, V. and Stancari, M. and Statera, M. and Steffens, E. and Steijger, J. J. M. and Stewart, J. and Taroian, S. and Terkulov, A. and Truty, R. and Trzcinski, A. and Tytgat, M. and Van Haarlem, Y. and Van Hulse, C. and Veretennikov, D. and Vikhrov, V. and Vilardi, I. and Wang, S. and Yaschenko, S. and Ye, Z. and Yen, S. and Yu, W. and Zagrebelnyy, V. and Zeiler, D. and Zihlmann, B. and Zupranski, P. (2012) Beam-helicity and beam-charge asymmetries associated with deeply virtual Compton scattering on the unpolarised proton. JOURNAL OF HIGH ENERGY PHYSICS (7): 032. ISSN 1029-8479,

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Abstract

Beam-helicity and beam-charge asymmetries in the hard exclusive leptoproduction of real photons from an unpolarised hydrogen target by a 27.6 GeV lepton beam are extracted from the HERMES data set of 2006-2007 using a missing-mass event selection technique. The asymmetry amplitudes extracted from this data set are more precise than those extracted from the earlier data set of 1996-2005 previously analysed in the same manner by HERMES. The results from the two data sets are compatible with each other. Results from these combined data sets are extracted and constitute the most precise asymmetry amplitude measurements made in the HERMES kinematic region using a missing-mass event selection technique.

Item Type: Article
Uncontrolled Keywords: GENERALIZED PARTON DISTRIBUTIONS; SUM-RULES; HERA; SPIN; DEPENDENCE; NUCLEON; Lepton-Nucleon Scattering
Subjects: 500 Science > 530 Physics
Divisions: Physics > Institute of Theroretical Physics > Chair Professor Schäfer > Group Andreas Schäfer
Depositing User: Dr. Gernot Deinzer
Date Deposited: 11 May 2020 06:16
Last Modified: 11 May 2020 06:16
URI: https://pred.uni-regensburg.de/id/eprint/18468

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