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

A. Airapetian, N. Akopov, Z. Akopov, M. Amarian, A. Andrus, E. C. Aschenauer, W. Augustyniak, R. Avakian, A. Avetissian, E. Avetissian, A. Bacchetta, P. Bailey, D. Balin, M. Beckmann, S. Belostotski, N. Bianchi, H. P. Blok, H. Böttcher, A. Borissov, A. BorysenkoM. Bouwhuis, A. Brüll, V. Bryzgalov, M. Capiluppi, G. P. Capitani, T. Chen, G. Ciullo, M. Contalbrigo, P. F. Dalpiaz, W. Deconinck, R. De Leo, M. Demey, L. De Nardo, E. De Sanctis, E. Devitsin, M. Diefenthaler, P. Di Nezza, J. Dreschler, M. Düren, M. Ehrenfried, A. Elalaoui-Moulay, G. Elbakian, F. Ellinghaus, U. Elschenbroich, R. Fabbri, A. Fantoni, L. Felawka, S. Frullani, A. Funel, G. Gapienko, V. Gapienko, F. Garibaldi, K. Garrow, G. Gavrilov, V. Gharibyan, O. Grebeniouk, I. M. Gregor, C. Hadjidakis, K. Hafidi, M. Hartig, D. Hasch, W. H.A. Hesselink, A. Hillenbrand, M. Hoek, Y. Holler, B. Hommez, I. Hristova, G. Iarygin, A. Ivanilov, A. Izotov, H. E. Jackson, A. Jgoun, R. Kaiser, T. Keri, E. Kinney, A. Kisselev, T. Kobayashi, M. Kopytin, V. Korotkov, V. Kozlov, B. Krauss, V. G. Krivokhijine, L. Lagamba, L. Lapikás, A. Laziev, P. Lenisa, P. Liebing, L. A. Linden-Levy, W. Lorenzon, H. Lu, J. Lu, S. Lu, B. Q. Ma, B. Maiheu, N. C.R. Makins, Y. Mao, B. Marianski, H. Marukyan, F. Masoli, V. Mexner, N. Meyners, T. Michler, O. Mikloukho, C. A. Miller, Y. Miyachi, V. Muccifora, M. Murray, A. Nagaitsev, E. Nappi, Y. Naryshkin, M. Negodaev, W. D. Nowak, K. Oganessyan, H. Ohsuga, A. Osborne, N. Pickert, D. H. Potterveld, M. Raithel, D. Reggiani, P. E. Reimer, A. Reischl, A. R. Reolon, C. Riedl, K. Rith, G. Rosner, A. Rostomyan, L. Rubacek, J. Rubin, D. Ryckbosch, Y. Salomatin, I. Sanjiev, I. Savin, A. Schäfer, G. Schnell, K. P. Schüler, J. Seele, R. Seidl, B. Seitz, C. Shearer, T. A. Shibata, V. Shutov, K. Sinram, W. Sommer, M. Stancari, M. Statera, E. Steffens, J. J.M. Steijger, H. Stenzel, J. Stewart, F. Stinzing, P. Tait, H. Tanaka, S. Taroian, B. Tchuiko, A. Terkulov, A. Trzcinski, M. Tytgat, A. Vandenbroucke, P. B. Van Der Nat, G. Van Der Steenhoven, Y. Van Haarlem, V. Vikhrov, M. G. Vincter, C. Vogel, J. Volmer, S. Wang, J. Wendland, Y. Ye, Z. Ye, S. Yen, B. Zihlmann, P. Zupranski

Research output: Contribution to journalArticlepeer-review

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 π+ mesons and dominates the asymmetries on a longitudinally polarized target previously measured by Hermes. The subleading-twist contribution for π- mesons is found to be small.

Original languageEnglish (US)
Pages (from-to)14-22
Number of pages9
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume622
Issue number1-2
DOIs
StatePublished - Aug 25 2005

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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