; Ciullo, G. ; Contalbrigo, M. ; Dalpiaz, P.F. ; Deconinck, W.
; De Leo, R. ; De Nardo, L. ; De Sanctis, E. ; Diefenthaler, M. ; Di Nezza, P. ; Dreschler, J. ; Düren, M. ; Ehrenfried, M. ; Elbakian, G. ; Ellinghaus, F.
; Fabbri, R. ; Fantoni, A. ; Felawka, L. ; Frullani, S. ; Gabbert, D. ; Gapienko, G. ; Gapienko, V. ; Garibaldi, F. ; Gavrilov, G. ; Gharibyan, V. ; Giordano, F. ; Gliske, S.
; Hadjidakis, C. ; Hartig, M. ; Hasch, D. ; Hasegawa, T. ; Hill, G. ; Hillenbrand, A. ; Hoek, M.
; Holler, Y. ; Hristova, I. ; Imazu, Y. ; Ivanilov, A. ; Izotov, A. ; Jackson, H.E. ; Jgoun, A. ; Jo, H.S. ; Joosten, S. ; Kaiser, R. ; Karyan, G. ; Keri, T. ; Kinney, E. ; Kisselev, A. ; Kobayashi, N. ; Korotkov, V. ; Kozlov, V. ; Krauss, B. ; Kravchenko, P. ; Krivokhijine, V.G. ; Lagamba, L.
; Lamb, R. ; Lapikás, L. ; Lehmann, I. ; Lenisa, P. ; Linden-Levy, L.A. ; López Ruiz, A. ; Lorenzon, W. ; Lu, X.-G.
; Lu, X.-R.
; Ma, B.-Q. ; Mahon, D. ; Makins, N.C.R. ; Manaenkov, S.I. ; Manfré, L. ; Mao, Y. ; Marianski, B. ; de la Ossa, A. Martinez ; Marukyan, H. ; Miller, C.A. ; Miyachi, Y. ; Movsisyan, A. ; Muccifora, V. ; Müller, D.
; Murray, M. ; Mussgiller, A. ; Nappi, E. ; Naryshkin, Y. ; Nass, A. ; Negodaev, M. ; Nowak, W.-D. ; Pappalardo, L.L. ; Perez-Benito, R. ; Pickert, N. ; Raithel, M. ; Reimer, P.E.
; Reolon, A.R. ; Riedl, C. ; Rith, K. ; Rosner, G. ; Rostomyan, A. ; Rubin, J. ; Ryckbosch, D. ; Salomatin, Y. ; Sanftl, F. ; Schäfer, A. ; Schnell, G. ; Schüler, K.P. ; Seitz, B. ; Shibata, T.-A. ; Shutov, V. ; Stancari, M. ; Statera, M. ; Steffens, E. ; Steijger, J.J.M. ; Stenzel, H. ; Stewart, J. ; Stinzing, F. ; Taroian, S. ; Terkulov, A.
; Trzcinski, A. ; Tytgat, M.
; Vandenbroucke, A. ; Van der Nat, P.B. ; Van Haarlem, Y. ; Van Hulse, C. ; Varanda, M. ; Veretennikov, D. ; Vikhrov, V. ; Vilardi, I. ; Vogel, C. ; Wang, S. ; Yaschenko, S. ; Ye, H. ; Ye, Z. ; Yen, S. ; Yu, W. ; Zeiler, D. ; Zihlmann, B. ; Zupranski, P. | Item type: | Article | ||||
|---|---|---|---|---|---|
| Journal or Publication Title: | Nuclear Physics B | ||||
| Publisher: | ELSEVIER SCIENCE BV | ||||
| Place of Publication: | AMSTERDAM | ||||
| Volume: | 829 | ||||
| Number of Issue or Book Chapter: | 1-2 | ||||
| Page Range: | pp. 1-27 | ||||
| Date: | 2010 | ||||
| Institutions: | Physics > Institute of Theroretical Physics > Chair Professor Schäfer > Group Andreas Schäfer | ||||
| Identification Number: |
| ||||
| Keywords: | GENERALIZED PARTON DISTRIBUTIONS; IMPACT PARAMETER SPACE; EVOLUTION KERNELS; HELICITY-FLIP; NUCLEON; HERA; AMPLITUDE; HERMES; DIS; HERMES experiment; GPD; DVCS; Deuteron; Unpolarized deuterium target | ||||
| Dewey Decimal Classification: | 500 Science > 530 Physics | ||||
| Status: | Published | ||||
| Refereed: | Yes, this version has been refereed | ||||
| Created at the University of Regensburg: | Yes | ||||
| Item ID: | 66194 |
Abstract
Azimuthal asymmetries in exclusive electroproduction of a real photon from an unpolarized deuterium target are measured with respect to beam helicity and charge. They appear in the distribution of these photons in the azimuthal angle phi around the virtual-photon direction, relative to the lepton scattering plane. The extracted asymmetries are attributed to either the deeply virtual Compton ...

Abstract
Azimuthal asymmetries in exclusive electroproduction of a real photon from an unpolarized deuterium target are measured with respect to beam helicity and charge. They appear in the distribution of these photons in the azimuthal angle phi around the virtual-photon direction, relative to the lepton scattering plane. The extracted asymmetries are attributed to either the deeply virtual Compton scattering process or its interference with the Bethe-Heitler process. They are compared with earlier results on the proton target. In the measured kinematic region, the beam-charge asymmetry amplitudes and the leading amplitudes of the beam-helicity asymmetries on an unpolarized deuteron target are compatible with the results from unpolarized protons. (C) 2009 Elsevier B.V. All rights reserved.
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