Single-spin azimuthal asymmetries in electroproduction of neutral pions in semi-inclusive deep-inelastic scattering -: art. no. 097101 Academic Article uri icon

abstract

  • A single-spin asymmetry in the azimuthal distribution of neutral pions relative to the lepton scattering plane has been measured for the first time in deep-inelastic scattering of positrons off longitudinally polarized protons. The analyzing power in the (Formula presented) moment of the cross section is (Formula presented) This result is compared to single-spin asymmetries for charged pion production measured in the same kinematic range. The (Formula presented) asymmetry is of the same size as the (Formula presented) asymmetry and shows a similar dependence on the relevant kinematic variables. The asymmetry is described by a phenomenological calculation based on a fragmentation function that represents sensitivity to the transverse polarization of the struck quark. 2001 The American Physical Society.

published proceedings

  • PHYSICAL REVIEW D

author list (cited authors)

  • Airapetian, A., Akopov, N., Akopov, Z., Amarian, M., Aschenauer, E. C., Avakian, H., ... Zohrabian, H.

citation count

  • 149

complete list of authors

  • Airapetian, A||Akopov, N||Akopov, Z||Amarian, M||Aschenauer, EC||Avakian, H||Avakian, R||Avetissian, A||Avetissian, E||Bailey, P||Bains, B||Baturin, V||Baumgarten, C||Beckmann, M||Belostotski, S||Bernreuther, S||Bianchi, N||Böttcher, H||Borissov, A||Bouhali, O||Bouwhuis, M||Brack, J||Brauksiepe, S||Brückner, W||Brüll, A||Brunn, I||Bulten, HJ||Capitani, GP||Chumney, P||Cisbani, E||Ciullo, G||Court, GR||Dalpiaz, PF||De Leo, R||De Nardo, L||De Sanctis, E||De Schepper, D||Devitsin, E||Huberts, PKAD||Di Nezza, P||Djordjadze, V||Düren, M||Ehrenfried, M||Elbakian, G||Ellinghaus, F||Ely, J||Fantoni, A||Fechtchenko, A||Felawka, L||Filippone, BW||Fischer, H||Fox, B||Franz, J||Frullani, S||Gärber, Y||Garibaldi, F||Garutti, E||Gavrilov, G||Gharibyan, V||Golendukhin, A||Graw, G||Grebeniouk, O||Green, PW||Greeniaus, LG||Gute, A||Haeberli, W||Hafidi, K||Hartig, M||Hasch, D||Heesbeen, D||Heinsius, FH||Henoch, M||Hertenberger, R||Hesselink, WHA||Hofman, G||Holler, Y||Holt, RJ||Hommez, B||Iarygin, G||Izotov, A||Jackson, HE||Jgoun, A||Jung, P||Kaiser, R||Kanesaka, J||Kinney, E||Kisselev, A||Kitching, P||Kobayashi, H||Koch, N||Königsmann, K||Kolster, H||Korotkov, V||Kotik, E||Kozlov, V||Krauss, B||Krivokhijine, VG||Kyle, G||Lagamba, L||Laziev, A||Lenisa, P||Liebing, P||Lindemann, T||Lorenzon, W||Maas, A||Makins, NCR||Marukyan, H||Masoli, F||McAndrew, M||McIlhany, K||Meissner, F||Menden, F||Meyners, N||Mikloukho, O||Miller, CA||Milner, R||Muccifora, V||Mussa, R||Nagaitsev, A||Nappi, E||Naryshkin, Y||Nass, A||Negodaeva, K||Nowak, WD||Oganessyan, K||O'Neill, TG||Owen, BR||Pate, SF||Potashov, S||Potterveld, DH||Raithel, M||Rakness, G||Rappoport, V||Redwine, R||Reggiani, D||Reolon, AR||Rith, K||Robinson, D||Rostomyan, A||Ruh, M||Ryckbosch, D||Sakemi, Y||Sanjiev, I||Sato, F||Savin, I||Scarlett, C||Schäfer, A||Schill, C||Schmidt, F||Schnell, G||Schüler, KP||Schwind, A||Seibert, J||Seitz, B||Shibata, TA||Shutov, V||Simani, MC||Simon, A||Sinram, K||Steffens, E||Steijger, JJM||Stewart, J||Stösslein, U||Suetsugu, K||Taroian, S||Terkulov, A||Teryaev, O||Tessarin, S||Thomas, E||Tipton, B||Tytgat, M||Urciuoli, GM||van den Brand, JFJ||van der Steenhoven, G||van de Vyver, R||van Hunen, JJ||Vetterli, MC||Vikhrov, V||Vincter, MG||Visser, J||Weiskopf, C||Wendland, J||Wilbert, J||Wise, T||Yen, S||Yoneyama, S||Zohrabian, H

publication date

  • November 2001