/ hep-ex DESY-13-187


Transverse target single-spin asymmetry in inclusive electroproduction of charged pions and kaons


Airapetian, A. (Michigan U.) ; Akopov, N. (Yerevan Phys. Inst.) ; Akopov, Z. (DESY) ; Aschenauer, E.C. (DESY) ; Augustyniak, W. (Warsaw, Inst. Nucl. Studies) ; Avakian, R. (Yerevan Phys. Inst.) ; Avetissian, A. (Yerevan Phys. Inst.) ; Avetisyan, E. (DESY) ; Belostotski, S. (St. Petersburg, INP) ; Bianchi, N. (Frascati) ; Blok, H.P. (Vrije U., Amsterdam) ; Borissov, A. (DESY) ; Bowles, J. (Glasgow U.) ; Bryzgalov, V. (Serpukhov, IHEP) ; Burns, J. (Glasgow U.) ; Capiluppi, M. (INFN, Ferrara) ; Capitani, G.P. (Frascati) ; Cisbani, E. (INFN, Rome) ; Ciullo, G. (INFN, Ferrara) ; Contalbrigo, M. (INFN, Ferrara) ; Dalpiaz, P.F. (INFN, Ferrara) ; Deconinck, W. (DESY) ; De Leo, R. (INFN, Bari) ; De Nardo, L. (Gent U.) ; De Sanctis, E. (Frascati) ; Diefenthaler, M. (Erlangen - Nuremberg U.) ; Di Nezza, P. (Frascati) ; Duren, M. (Giessen U.) ; Ehrenfried, M. (Giessen U.) ; Elbakian, G. (Yerevan Phys. Inst.) ; Ellinghaus, F. (Colorado U.) ; Fabbri, R. (DESY) ; Fantoni, A. (Frascati) ; Felawka, L. (TRIUMF) ; Frullani, S. (INFN, Rome) ; Gabbert, D. (DESY) ; Gapienko, G. (Serpukhov, IHEP) ; Gapienko, V. (Serpukhov, IHEP) ; Gavrilov, G. (DESY) ; Gharibyan, V. (Yerevan Phys. Inst.) ; Giordano, F. (INFN, Ferrara) ; Gliske, S. (Michigan U.) ; Golembiovskaya, M. (DESY) ; Hadjidakis, C. (Frascati) ; Hartig, M. (DESY) ; Hasch, D. (Frascati) ; Hillenbrand, A. (DESY) ; Hoek, M. (Glasgow U.) ; Holler, Y. (DESY) ; Hristova, I. (DESY) ; Ivanilov, A. (Serpukhov, IHEP) ; Jackson, H.E. (Argonne) ; Joosten, S. (Gent U.) ; Kaiser, R. (Glasgow U.) ; Karyan, G. (Yerevan Phys. Inst.) ; Keri, T. (Giessen U.) ; Kinney, E. (Colorado U.) ; Kisselev, A. (St. Petersburg, INP) ; Korotkov, V. (Serpukhov, IHEP) ; Kozlov, V. (Lebedev Inst.) ; Kravchenko, P. (St. Petersburg, INP) ; Krivokhijine, V.G. (Dubna, JINR) ; Lagamba, L. (INFN, Bari) ; Lapikas, L. (NIKHEF, Amsterdam) ; Lehmann, I. (Glasgow U.) ; Lenisa, P. (INFN, Ferrara) ; Lopez Ruiz, A. (Gent U.) ; Lorenzon, W. (Michigan U.) ; Ma, B.Q. (Peking U.) ; Mahon, D. (Glasgow U.) ; Makins, N.C.R. (Illinois U., Urbana) ; Manaenkov, S.I. (St. Petersburg, INP) ; Mao, Y. (Peking U.) ; Marianski, B. (Warsaw, Inst. Nucl. Studies) ; Martinez de la Ossa, A. (Colorado U.) ; Marukyan, H. (Yerevan Phys. Inst.) ; Miller, C.A. (TRIUMF) ; Miyachi, Y. (Tokyo Inst. Tech.) ; Movsisyan, A. (Yerevan Phys. Inst.) ; Murray, M. (Glasgow U.) ; Mussgiller, A. (Erlangen - Nuremberg U.) ; Nappi, E. (INFN, Bari) ; Naryshkin, Y. (St. Petersburg, INP) ; Negodaev, M. (DESY) ; Nowak, W.D. (DESY) ; Pappalardo, L.L. (INFN, Ferrara) ; Perez-Benito, R. (Giessen U.) ; Petrosyan, A. (Yerevan Phys. Inst.) ; Raithel, M. (Erlangen - Nuremberg U.) ; Reimer, P.E. (Argonne) ; Reolon, A.R. (Frascati) ; Riedl, C. (DESY) ; Rith, K. (Erlangen - Nuremberg U.) ; Rosner, G. (Glasgow U.) ; Rostomyan, A. (DESY) ; Rubin, J. (Illinois U., Urbana) ; Ryckbosch, D. (Gent U.) ; Salomatin, Y. (Serpukhov, IHEP) ; Sanftl, F. (Regensburg U.) ; Schafer, A. (Regensburg U.) ; Schnell, G. (Gent U.) ; Seitz, B. (Glasgow U.) ; Shibata, T.A. (Tokyo Inst. Tech.) ; Shutov, V. (Dubna, JINR) ; Stancari, M. (INFN, Ferrara) ; Statera, M. (INFN, Ferrara) ; Steffens, E. (Erlangen - Nuremberg U.) ; Steijger, J.J.M. (NIKHEF, Amsterdam) ; Stewart, J. (DESY) ; Stinzing, F. (Erlangen - Nuremberg U.) ; Taroian, S. (Yerevan Phys. Inst.) ; Terkulov, A. (Lebedev Inst.) ; Truty, R. (Illinois U., Urbana) ; Trzcinski, A. (Warsaw, Inst. Nucl. Studies) ; Tytgat, M. (Gent U.) ; Van Haarlem, Y. (Gent U.) ; Van Hulse, C. (Gent U.) ; Veretennikov, D. (St. Petersburg, INP) ; Vikhrov, V. (St. Petersburg, INP) ; Vilardi, I. (INFN, Bari) ; Wang, S. (Peking U.) ; Yaschenko, S. (Erlangen - Nuremberg U.) ; Ye, Z. (DESY) ; Yen, S. (TRIUMF) ; Yu, W. (Giessen U.) ; Zagrebelnyy, V. (Giessen U.) ; Zeiler, D. (Erlangen - Nuremberg U.) ; Zihlmann, B. (DESY) ; Zupranski, P. (Warsaw, Inst. Nucl. Studies)

Published in: Phys.Lett.
Year: 2014
Vol.: B728
Page No: 183-190
Pages: 8
Year: 2014

Abstract: Single-spin asymmetries were investigated in inclusive electroproduction of charged pions and kaons from transversely polarized protons at the HERMES experiment. The asymmetries were studied as a function of the azimuthal angle $\psi$ about the beam direction between the target-spin direction and the hadron production plane, the transverse hadron momentum relative to the direction of the incident beam, and the Feynman variable $x_F$. The $\sin(\psi)$ amplitudes are positive for positive pions and kaons, slightly negative for negative pions and consistent with zero for negative kaons, with particular transverse-momentum but weak $x_F$ dependences. Especially large asymmetries are observed for two small subsamples of events, where also the scattered electron was recorded by the spectrometer.

Web-Page: http://inspirehep.net/record/1261274/files/arXiv:1310.5070.pdf


Note: *Temporary entry*; 10 pages, 5 figures

Total numbers of views: 1573
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DOI: 10.1016/j.physletb.2013.11.021
 Record created 2013-11-11, last modified 2014-02-03


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