Beam-charge azimuthal asymmetry and deeply virtual Compton scattering

B. Marianski, S. Frullani, J. G. Rubin, L. A. Linden-Levy, G. Rosner, A. Borysenko, R. De Leo, S. Taroian, B. Zihlmann, B. Maiheu, A. Borissov, Arne Vandenbroucke, W. Augustyniak, K. Sinram, M. Statera, V. G. Krivokhijine, Nicola Bianchi, Klaus Rith, A. Nagaitsev, V. Gharibyan, Y. Salomatin, G. van der Steenhoven, L. Lapikás, G. Gapienko, F. Masoli, M. Contalbrigo, T. A. Shibata, B. Q. Ma, H. Y. Lu, Zhenyu Ye, A. Kisselev, M. Kopytin, A. Brull, Cynthia Marie Hadjidakis, L. De Nardo, M. Stancari, C. Riedl, K. Oganessyan, A. Laziev, M. Hoek, K. P. Schüler, G. Ciullo, G. Elbakian, Andrey V. Izotov, Tsutomu Kobayashi, D. H. Potterveld, A. Andrus, Rezo Shanidze, A. Funel, E. De Sanctis, H. P. Blok, P. Liebing, V. Shutov, J. Dreschler, F. Garibaldi, J. Wendland, E. C. Aschenauer, C. Vogel, A. Rostomyan, V. Mexner, Y. Holler, O. Mikloukho, U. Elschenbroich, A. Airapetian, H. E. Jackson, Frank Ellinghaus, J. Seele, K. Hafidi, O. Grebeniouk, G. P. Capitani, J. Volmer, Wouter Deconinck, G. Gavrilov, S. Belostotski, H. Böttcher, N. Meyners, E. Steffens, W.-D. Nowak, J. Stewart, I. M. Gregor, Michael Düren, B. Hommez, V. A. Korotkov, B. Krauss, Riccardo Fabbri, Adel Terkulov, I. Sanjiev, W. Sommer, R. Seidl, L. Lagamba, T. Chen, Alessandra Fantoni, A. Elalaoui-Moulay, Shan Wang, M. Beckmann, K. Garrow, V. Vikhrov, Hasko Stenzel, M. Bouwhuis, D. Reggiani, V. A. Kozlov, R.O. Avakian, P. E. Reimer, Michael Tytgat, A. Trzcinski, B. Tchuiko, J. J. M. Steijger, E. Devitsin, M. Ehrenfried, C. Shearer, E. Avetissian, Wolfgang Lorenzon, M. Capiluppi, N. Akopov, M. Hartig, V. Bryzgalov, Ivana Hristova, L. Felawka, B. Seitz, P. Di Nezza, S. Yen, I.A. Savin, P. F. Dalpiaz, Andreas Schäfer, M. Amarian, H. Ohsuga, A. Osborne, D. Hasch, D. Balin, E. R. Kinney, T. Michler, Y. Miyachi, Martin Raithel, Y. Naryshkin, P. B. van der Nat, J. Lu, M. Demey, Z. Akopov, Y. X. Ye, W.H.A. Hesselink, F. Stinzing, D. Gaskell, A. Reischl, P. Tait, N. Pickert, H. Marukyan, Ralf Kaiser, C. A. Miller, Y. J. Mao, Dirk Ryckbosch, Eugenio Nappi, A. R. Reolon, S. Lu, A. Jgoun, V. A. Gapienko, A. Avetissian, G. Schnell, A. Ivanilov, Naomi C R Makins, Hidekazu Tanaka, P. Zupranski, P. Lenisa, G. Iarygin, L. Rubacek, Y. Van Haarlem, Morgan Murray, M. Negodaev, Valeria Muccifora, Manuella Vincter, A. Hillenbrand, P. Bailey

doi:10.48550/arxiv.hep-ex/0605108

Beam-charge azimuthal asymmetry and deeply virtual Compton scattering

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説明

The first observation of an azimuthal cross--section asymmetry with respect to the charge of the incoming lepton beam is reported from a study of hard exclusive electroproduction of real photons. The data have been accumulated by the HERMES experiment at DESY, in which the HERA 27.6 GeV electron or positron beam scattered off an unpolarized hydrogen gas target. The observed asymmetry is attributed to the interference between the Bethe--Heitler process and the Deeply Virtual Compton Scattering (DVCS) process. The interference term is sensitive to DVCS amplitudes, which provide the most direct access to Generalized Parton Distributions.

収録刊行物

Physical Review D

Physical Review D 75 2007-01-26

American Physical Society (APS)

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CRID

1873679867762807552
DOI

10.1103/physrevd.75.011103

10.48550/arxiv.hep-ex/0605108
ISSN

15502368

15507998
HANDLE

1871.1/8221d347-498f-4c1b-9f43-d923ae282114

11392/517839
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- OpenAIRE

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Beam-charge azimuthal asymmetry and deeply virtual Compton scattering

この論文をさがす

説明

収録刊行物

キーワード

詳細情報 詳細情報について

書き出し

問題の指摘

詳細情報詳細情報について