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.

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

CAPILUPPI, Marco;CIULLO, Giuseppe;CONTALBRIGO, Marco;FERRETTI, Paola;GIORDANO, Francesca;LENISA, Paolo;PAPPALARDO, Luciano Libero;STANCARI, Michelle Dawn;STATERA, Marco;
2010

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.
2010
A., Airapetian; N., Akopov; Z., Akopov; M., Amarian; E. C., Aschenauer; W., Augustyniak; R., Avakian; A., Avetissian; E., Avetisyan; B., Ball; S., Belostotski; N., Bianchi; H. P., Blok; H., Bottcher; A., Borissov; J., Bowles; V., Bryzgalov; J., Burns; Capiluppi, Marco; G. P., Capitani; E., Cisbani; Ciullo, Giuseppe; Contalbrigo, Marco; Ferretti, Paola; W., Deconinck; R. D., Leo; L. D., Nardo; E. D., Sanctis; M., Diefenthaler; P. D., Nezza; M., Duren; M., Ehrenfried; G., Elbakian; F., Ellinghaus; R., Fabbri; A., Fantoni; L., Felawka; S., Frullani; D., Gabbert; G., Gapienko; V., Gapienko; F., Garibaldi; G., Gavrilov; V., Gharibyan; Giordano, Francesca; S., Gliske; H., Guler; V., Guzey; S., Haan; C., Hadjidakis; M., Hartig; D., Hasch; G., Hill; A., Hillenbrand; M., Hoek; Y., Holler; I., Hristova; Y., Imazu; A., Ivanilov; H. E., Jackson; H. S., Jo; S., Joosten; R., Kaiser; G., Karyan; T., Keri; E., Kinney; A., Kisselev; V., Korotkov; V., Kozlov; P., Kravchenko; L., Lagamba; R., Lamb; L., Lapikas; I., Lehmann; Lenisa, Paolo; A. L., Ruiz; W., Lorenzon; X. G., Lu; X. R., Lu; B. Q., Ma; D., Mahon; N. C. R., Makins; S. I., Manaenkov; L., Manfre; Y., Mao; B., Marianski; A. M., de la Ossa; H., Marukyan; C. A., Miller; Y., Miyachi; A., Movsisyan; V., Muccifora; M., Murray; A., Mussgiller; E., Nappi; Y., Naryshkin; A., Nass; M., Negodaev; W. D., Nowak; Pappalardo, Luciano Libero; R., Perez Benito; M., Raithel; P. E., Reimer; A. R., Reolon; C., Riedl; K., Rith; G., Rosner; A., Rostomyan; J., Rubin; D., Ryckbosch; Y., Salomatin; A., Schafer; G., Schnell; K. P., Schuler; R., Shanidze; T. A., Shibata; V., Shutov; Stancari, Michelle Dawn; Statera, Marco; E., Steffens; J. J. M., Steijger; J., Stewart; F., Stinzing; S., Taroian; A., Terkulov; A., Trzcinski; M., Tytgat; A., Vandenbroucke; Y. V., Haarlem; C. V., Hulse; M., Varanda; D., Veretennikov; V., Vikhrov; I., Vilardi; S., Wang; S., Yaschenko; H., Ye; Z., Ye; W., Yu; D., Zeiler; B., Zihlmann; P., Zupranski
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11392/1436913
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