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Nuclear-mass dependence of azimuthal beam-helicity and beam-charge asymmetries in deeply virtual Compton scattering

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Abstract
The nuclear-mass dependence of azimuthal cross-section asymmetries with respect to charge and longitudinal polarization of the lepton beam is studied for hard exclusive electroproduction of real photons. The observed beam-charge and beam-helicity asymmetries are attributed to the interference between the Bethe-Heitler and the deeply virtual Compton scattering processes. For various nuclei, the asymmetries are extracted for both coherent and incoherent-enriched regions, which involve different (combinations of) generalized parton distributions. For both regions, the asymmetries are compared to those for a free proton, and no nuclear-mass dependence is found.
Keywords
SPIN, HERA, GENERALIZED PARTON DISTRIBUTIONS, IMPACT PARAMETER SPACE

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Chicago
Airapetian, A, N Akopov, Z Akopov, M Amarian, EC Aschenauer, W Augustyniak, R Avakian, et al. 2010. “Nuclear-mass Dependence of Azimuthal Beam-helicity and Beam-charge Asymmetries in Deeply Virtual Compton Scattering.” Physical Review C 81 (3).
APA
Airapetian, A., Akopov, N., Akopov, Z., Amarian, M., Aschenauer, E., Augustyniak, W., Avakian, R., et al. (2010). Nuclear-mass dependence of azimuthal beam-helicity and beam-charge asymmetries in deeply virtual Compton scattering. PHYSICAL REVIEW C, 81(3).
Vancouver
1.
Airapetian A, Akopov N, Akopov Z, Amarian M, Aschenauer E, Augustyniak W, et al. Nuclear-mass dependence of azimuthal beam-helicity and beam-charge asymmetries in deeply virtual Compton scattering. PHYSICAL REVIEW C. 2010;81(3).
MLA
Airapetian, A, N Akopov, Z Akopov, et al. “Nuclear-mass Dependence of Azimuthal Beam-helicity and Beam-charge Asymmetries in Deeply Virtual Compton Scattering.” PHYSICAL REVIEW C 81.3 (2010): n. pag. Print.
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  abstract     = {The nuclear-mass dependence of azimuthal cross-section asymmetries with respect to charge and longitudinal polarization of the lepton beam is studied for hard exclusive electroproduction of real photons. The observed beam-charge and beam-helicity asymmetries are attributed to the interference between the Bethe-Heitler and the deeply virtual Compton scattering processes. For various nuclei, the asymmetries are extracted for both coherent and incoherent-enriched regions, which involve different (combinations of) generalized parton distributions. For both regions, the asymmetries are compared to those for a free proton, and no nuclear-mass dependence is found.},
  articleno    = {035202},
  author       = {Airapetian, A and Akopov, N and Akopov, Z and Amarian, M and Aschenauer, EC and Augustyniak, W and Avakian, R and Avetissian, A and Avetisyan, E and Ball, B and Belostotski, S and Bianchi, N and Blok, HP and Bottcher, H and Borissov, A and Bowles, J and Bryzgalov, V and Burns, J and Capiluppi, M and Capitani, GP and Cisbani, E and Ciullo, G and Contalbrigo, M and Dalpiaz, PF and Deconinck, W and De Leo, R and De Nardo, Lara and De Sanctis, E and Diefenthaler, M and Di Nezza, P and Duren, M and Ehrenfried, M and Elbakian, G and Ellinghaus, F and Fabbri, R and Fantoni, A and Felawka, L and Frullani, S and Gabbert, Dominik and Gapienko, G and Gapienko, V and Garibaldi, F and Gavrilov, G and Gharibyan, V and Giordano, F and Gliske, S and Guler, H and Guzey, V and Haan, S and Hadjidakis, C and Hartig, M and Hasch, D and Hill, G and Hillenbrand, A and Hoek, M and Holler, Y and Hristova, I and Imazu, Y and Ivanilov, A and Jackson, HE and Jo, HS and Joosten, S and Kaiser, R and Karyan, G and Keri, T and Kinney, E and Kisselev, A and Korotkov, V and Kozlov, V and Kravchenko, P and Lagamba, L and Lamb, R and Lapikas, L and Lehmann, I and Lenisa, P and Lopez Ruiz, Alejandro and Lorenzon, W and Lu, XG and Lu, XR and Ma, BQ and Mahon, D and Makins, NCR and Manaenkov, SI and Manfre, L and Mao, Y and Marianski, B and de la Ossa, AM and Marukyan, H and Miller, CA 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 Negodaev, M and Nowak, WD and Pappalardo, LL and Perez-Benito, R and Raithel, M and Reimer, PE and Reolon, AR and Riedl, C and Rith, K and Rosner, G and Rostomyan, A and Rubin, J and Ryckbosch, Dirk and Salomatin, Y and Schafer, A and Schnell, G and Schuler, KP and Shanidze, R and Shibata, TA and Shutov, V and Stancari, M and Statera, M and Steffens, E and Steijger, JJM and Stewart, J and Stinzing, F and Taroian, S and Terkulov, A and Trzcinski, A and Tytgat, Michael and Vandenbroucke, A and Van Haarlem, Y and Van Hulse, Charlotte and Varanda, M and Veretennikov, D and Vikhrov, V and Vilardi, I and Wang, S and Yaschenko, S and Ye, H and Ye, Z and Yu, W and Zeiler, D and Zihlmann, B and Zupranski, P},
  issn         = {0556-2813},
  journal      = {PHYSICAL REVIEW C},
  language     = {eng},
  number       = {3},
  pages        = {10},
  title        = {Nuclear-mass dependence of azimuthal beam-helicity and beam-charge asymmetries in deeply virtual Compton scattering},
  url          = {http://dx.doi.org/10.1103/PhysRevC.81.035202},
  volume       = {81},
  year         = {2010},
}

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