Journal article
Authors list: Airapetian, A.; Akopov, Z.; Amarian, M.; Andrus, A.; Aschenauer, E. C.; Augustyniak, W.; Avakian, H.; Avakian, R.; Avetissian, A.; Avetisyan, E.; Bacchetta, A.; Bailey, P.; Belostotski, S.; Bianchi, N.; Blok, H. P.; Boettcher, H.; Borissov, A.; Borysenko, A.; Bruell, A.; Bryzgalov, V.; Capiluppi, M.; Capitani, G. P.; Ciullo, G.; Contalbrigo, M.; Dalpiaz, P. F.; Deconinck, W.; De Leo, R.; Demey, M.; De Nardo, L.; De Sanctis, E.; Devitsin, E.; Diefenthaler, M.; Di Nezza, P.; Dreschler, J.; Dueren, M.; Ehrenfried, M.; Elalaoui-Moulay, A.; Elbakian, G.; Ellinghaus, F.; Elschenbroich, U.; Fabbri, R.; Fantoni, A.; Felawka, L.; Frullani, S.; Funel, A.; Gapienko, G.; Gapienko, V.; Garibaldi, F.; Garrow, K.; Gavrilov, G.; Gharibyan, V.; Giordano, F.; Grebeniouk, O.; Gregor, I. M.; Guler, H.; Hadjidakis, C.; Hafidi, K.; Hartig, M.; Hasch, D.; Hasegawa, T.; Hesselink, W. H. A.; Hillenbrand, A.; Hoek, M.; Holler, Y.; Hommez, B.; Hristova, I.; Iarygin, G.; Ivanilov, A.; Izotov, A.; Jackson, H. E.; Jgoun, A.; Kaiser, R.; Keri, T.; Kinney, E.; Kisselev, A.; Kobayashi, T.; Kopytin, M.; Korotkov, V.; Kozlov, V.; Krauss, B.; Kravchenko, P.; Krivokhijine, V. G.; Lagamba, L.; Lapikas, L.; Lenisa, P.; Liebing, P.; Linden-Levy, L. A.; Lorenzon, W.; Lu, J.; Lu, S.; Ma, B. -Q.; Maiheu, B.; Makins, N. C. R.; Mao, Y.; Marianski, B.; Marukyan, H.; Masoli, F.; Mexner, V.; Meyners, N.; Michler, T.; Mikloukho, O.; Miller, C. A.; Miyachi, Y.; Muccifora, V.; Murray, M.; Nagaitsev, A.; Nappi, E.; Naryshkin, Y.; Negodaev, M.; Nowak, W. -D.; Oganessyan, K.; Ohsuga, H.; Osborne, A.; Perez-Benito, R.; Pickert, N.; Raithel, M.; Reggiani, D.; Reimer, P. E.; Reischl, A.; Reolon, A. R.; Riedl, C.; Rith, K.; Rosner, G.; Rostomyan, A.; Rubacek, L.; Rubin, J.; Ryckbosch, D.; Salomatin, Y.; Sanjiev, I.; Savin, I.; Schaefer, A.; Schnell, G.; Schueler, K. P.; Seele, J.; Seidl, R.; Seitz, B.; Shearer, C.; Shibata, T. -A.; Shutov, V.; Sinram, K.; Stancari, M.; Statera, M.; Steffens, E.; Steijger, J. J. M.; Stenzel, H.; Stewart, J.; Stinzing, F.; Streit, J.; Tait, P.; Tanaka, H.; Taroian, S.; Tchuiko, B.; Terkulov, A.; Trzcinski, A.; Tytgat, M.; Vandenbroucke, A.; van der Nat, P. B.; van der Steenhoven, G.; van Haarlem, Y.; Vikhrov, V.; Vogel, C.; Wang, S.; Ye, Y.; Ye, Z.; Yen, S.; Zihlmann, B.; Zupranski, P.
Publication year: 2007
Pages: 164-170
Journal: Physics Letters B
Volume number: 648
Issue number: 2-3
ISSN: 0370-2693
Open access status: Hybrid
DOI Link: https://doi.org/10.1016/j.physletb.2007.03.015
Publisher: Elsevier
Abstract:
A measurement of the beam-spin asymmetry in the azimuthal distribution of pions produced in semi-inclusive deep-inelastic scattering off protons is presented. The measurement was performed using the HERMES spectrometer with a hydrogen gas target and the longitudinally polarized 27.6 GeV positron beam of HERA. The sinusoidal amplitude of the dependence of the asymmetry on the angle phi of the hadron production plane around the virtual photon direction relative to the lepton scattering plane was measured for pi(+), pi(-) and pi(0) mesons. The dependence of this amplitude on the Bjorken scaling variable and on the pion fractional energy and transverse momentum is presented. The results are compared to theoretical model calculations. (C) 2007 Elsevier B.V. All rights reserved.
Citation Styles
Harvard Citation style: Airapetian, A., Akopov, Z., Amarian, M., Andrus, A., Aschenauer, E., Augustyniak, W., et al. (2007) Beam-spin asymmetries in the azimuthal distribution of pion electroproduction, Physics Letters B, 648(2-3), pp. 164-170. https://doi.org/10.1016/j.physletb.2007.03.015
APA Citation style: Airapetian, A., Akopov, Z., Amarian, M., Andrus, A., Aschenauer, E., Augustyniak, W., Avakian, H., Avakian, R., Avetissian, A., Avetisyan, E., Bacchetta, A., Bailey, P., Belostotski, S., Bianchi, N., Blok, H., Boettcher, H., Borissov, A., Borysenko, A., Bruell, A., ...Zupranski, P. (2007). Beam-spin asymmetries in the azimuthal distribution of pion electroproduction. Physics Letters B. 648(2-3), 164-170. https://doi.org/10.1016/j.physletb.2007.03.015
Keywords
DEEP-INELASTIC SCATTERING; DRELL-YAN PROCESSES; HARD-SCATTERING; HERA; LEPTOPRODUCTION; ODD FRAGMENTATION FUNCTIONS; PARTON DISTRIBUTIONS; SEMIINCLUSIVE ELECTROPRODUCTION; SINGLE; TRANSVERSE-MOMENTUM
