Subleading-twist effects in single-spin asymmetries in semi-inclusive deep-inelastic scattering on a longitudinally polarized hydrogen target

Airapetian, A and Akopov, N and Akopov, Z and Amarian, M and Andrus, A and Aschenauer, EC and Augustyniak, W and Avakian, R and Avetissian, A and Avetissian, E and Bacchetta, A and Bailey, P and Balin, D and Beckmann, M and Belostotski, S and Bianchi, N and Blok, HP and Bottcher, H and Borissov, A and Borysenko, A and Bouwhuis, M and Brull, A and Bryzgalov, V and Capiluppi, M and Capitani, GP and Chen, T and Ciullo, G and Contalbrigo, M and Dalpiaz, PF and Deconinck, W and De Leo, R and Demey, M and De Nardo, L and De Sanctis, E and Devitsin, E and Diefenthaler, M and Di Nezza, P and Dreschler, J and Duren, M and Ehrenfried, M and Elalaoui-Moulay, A and Elbakian, G and Ellinghaus, E and Elschenbroich, U and Fabbri, R and Fantoni, A and Felawka, L and Frullani, S and Funel, A and Gapienko, G and Gapienko, V and Garibaldi, F and Garrow, K and Gavrilov, G and Gharibyan, V and Grebeniouk, O and Gregor, IM and Hadjidakis, C and Hafidi, K and Hartig, M and Hasch, D and Hesselink, WHA and Hillenbrand, A and Hoek, M and Holler, Y and Hommez, B and Hristova, I and Larygin, G and Lvanilov, A and Lzotov, A and Jackson, HE and Jgoun, A and Kaiser, R and Keri, T and Kinney, E and Kisselev, A and Kobayashi, T and Kopytin, M and Korotkov, V and Kozlov, V and Krauss, B and Krivokhijine, V and Lagamba, L and Lapikads, L and Laziev, A and Lenisa, P and Liebing, P and Linden-Levy, LA and Lorenzon, W and Lu, H and Lu, J and Lu, S and Ma, BQ and Maiheu, B and Makins, NCR and Mao, Y and Marianski, B and Marukyan, H and Masoli, F and Mexner, V and Meyners, N and Michler, T and Mikloukho, O and Miller, CA and Miyachi, Y and Muccifora, V and Murray, M and Nagaitsev, A and Nappi, E and Naryshkin, Y and Negodaev, M and Nowak, WD and Oganessyan, K and Ohsuga, H and Osborne, A and Pickert, N and Potterveld, DH and Raithel, M and Reggiani, D and Reimer, PE and Reischl, A and Reolon, AR and Riedl, C and Rith, K and Rosner, G and Rostomyan, A and Rubacek, L and Rubin, J and Ryckbosch, D and Salomatin, Y and Sanjiev, I and Savin, I and Schaefer, Andreas and Schnell, G. and Schuler, KP and Seele, J and Seidl, R and Seitz, B and Shearer, C and Shibata, TA and Shutov, V and Sinram, K and Sommer, W and Stancari, M and Statera, M and Steffens, E and Steijger, JJM and Stenzel, H and Stewart, J and Stinzingi, F and Taiti, P and Tanaka, H and Taroian, S and Tchuiko, B and Terkulov, A and Trzcinski, A and Tytgat, M and Vandenbroucke, A and van der Nat, PB and van der Steenhoven, G and van Haarlem, Y and Vikhrov, V and Vincter, MG and Vogel, C and Volmer, J and Wang, S and Wendland, J and Ye, Y and Ye, Z and Yen, S and Zihlmann, B and Zupranski, P (2005) Subleading-twist effects in single-spin asymmetries in semi-inclusive deep-inelastic scattering on a longitudinally polarized hydrogen target. PHYSICS LETTERS B, 622 (1-2). pp. 14-22. ISSN 0370-2693, 1873-2445

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Abstract

Single-spin asymmetries in the semi-inclusive production of charged pions in deep-inelastic scattering from transversely and longitudinally polarized proton targets are combined to evaluate the subleading-twist contribution to the longitudinal case. This contribution is significantly positive for pi(+) mesons and dominates the asymmetries on a longitudinally polarized target previously measured by HERMES. The subleading-twist contribution for pi(-) mesons is found to be small. (c) 2005 Elsevier B.V. All rights reserved.

Item Type: Article
Uncontrolled Keywords: FINAL-STATE INTERACTIONS; DRELL-YAN PROCESSES; PARTON DISTRIBUTIONS; PION ELECTROPRODUCTION; AZIMUTHAL ASYMMETRY; TRANSVERSE-MOMENTUM; DIS; LEPTOPRODUCTION; FRAGMENTATION; GAUGE;
Subjects: 500 Science > 530 Physics
Divisions: Physics > Institute of Theroretical Physics > Chair Professor Schäfer > Group Andreas Schäfer
Depositing User: Dr. Gernot Deinzer
Date Deposited: 03 May 2021 08:48
Last Modified: 03 May 2021 08:48
URI: https://pred.uni-regensburg.de/id/eprint/35764

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