Details

Autor(en) / Beteiligte

• Akopov, N.
• Aschenauer, E. C.
• Augustyniak, W.
• Avetissian, A.
• Avetisyan, E.
• Belostotski, S.
• Blok, H. P.
• Böttcher, H.
• Bowles, J.
• Brodski, I.
• Burns, J.
• Capitani, G. P.
• Cisbani, E.
• Ciullo, G.
• Contalbrigo, M.
• Dalpiaz, P. F.
• Deconinck, W.
• De Leo, R.
• De Nardo, L.
• De Sanctis, E.
• Di Nezza, P.
• Düren, M.
• Ehrenfried, M.
• Elbakian, G.
• Fabbri, R.
• Fantoni, A.
• Frullani, S.
• Gapienko, V.
• Garibaldi, F.
• Gavrilov, G.
• Gharibyan, V.
• Gliske, S.
• Hill, G.
• Holler, Y.
• Imazu, Y.
• Ivanilov, A.
• Izotov, A.
• Jo, H. S.
• Keri, T.
• Kinney, E.
• Kisselev, A.
• Kozlov, V.
• Kravchenko, P.
• Krivokhijine, V. G.
• Lagamba, L.
• Lapikás, L.
• Lehmann, I.
• Lenisa, P.
• Lorenzon, W.
• Ma, B.-Q.
• Manfré, L.
• Marukyan, H.
• Miller, C. A.
• Movsisyan, A.
• Murray, M.
• Mussgiller, A.
• Naryshkin, Y.
• Nass, A.
• Negodaev, M.
• 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.
• Stancari, M.
• Steijger, J. J. M.
• Stenzel, H.
• Stewart, J.
• Stinzing, F.
• Terkulov, A.
• Trzcinski, A.
• Vandenbroucke, A.
• van der Nat, P. B.
• Van Haarlem, Y.
• Van Hulse, C.
• Veretennikov, D.
• Vikhrov, V.
• Vogel, C.
• Wang, S.
• Ye, H.
• Ye, Z.
• Yen, S.
• Yu, W.
• Zeiler, D.
• Zihlmann, B.
• Zupranski, P.

Titel

Exclusive leptoproduction of real photons on a longitudinally polarised hydrogen target

Ist Teil von

• The journal of high energy physics, 2010-06, Vol.2010 (6), Article 19

Ort / Verlag

Berlin/Heidelberg: Springer-Verlag

Erscheinungsjahr

2010

Quelle

Springer Online Journals

Beschreibungen/Notizen

• Polarisation asymmetries are measured for the hard exclusive leptoproduction of real photons from a longitudinally polarised hydrogen target. These asymmetries arise from the deeply virtual Compton scattering and Bethe-Heitler processes. From the data are extracted two asymmetries in the azimuthal distribution of produced real photons about the direction of the exchanged virtual photon: with respect to the target polarisation and with respect to the product of the beam and target polarisations. Results for both asymmetries are compared to the predictions from a generalised parton distribution model. The sin φ and cos(0φ) amplitudes observed respectively for the and asymmetries are compatible with the sizeable predictions from the model. Unexpectedly, a sin(2φ) modulation in the asymmetry with a magnitude similar to that of the sin φ modulation is observed.