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Sivers effect for pion and kaon production in semi-inclusive deep inelastic scattering

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Abstract

We study the Sivers effect in the transverse single spin asymmetries (SSA) for pion and kaon production in semi-inclusive deep inelastic scattering (SIDIS) processes. We perform a fit of \(\ensuremath A^{\sin(\phi_h-\phi_S)}_{UT}\) which, by including recent high-statistics experimental data for pion and kaon production from HERMES and COMPASS Collaborations, allows a new determination of the Sivers distribution functions for quarks and antiquarks with u , d and s flavours. Estimates for forthcoming SIDIS experiments at COMPASS and JLab are given.

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Authors and Affiliations

  1. Dipartimento di Fisica Teorica, Università di Torino, Via P. Giuria 1, I-10125, Torino, Italy

    M. Anselmino, M. Boglione, S. Melis, A. Prokudin & C. Türk

  2. INFN, Sezione di Torino, Via P. Giuria 1, I-10125, Torino, Italy

    M. Anselmino, M. Boglione, S. Melis, A. Prokudin & C. Türk

  3. Dipartimento di Fisica, Università di Cagliari, I-09042, Monserrato (CA), Italy

    U. D’Alesio

  4. INFN, Sezione di Cagliari, C.P. 170, I-09042, Monserrato (CA), Italy

    U. D’Alesio & F. Murgia

  5. CEA-Saclay, IRFU/Service de Physique Nucléaire, 91191, Gif-sur-Yvette, France

    A. Kotzinian

  6. Yerevan Physics Institute, 375036, Yerevan, Armenia

    A. Kotzinian

  7. JINR, 141980, Dubna, Russia

    A. Kotzinian

  8. Di.S.T.A., Università del Piemonte Orientale “A. Avogadro”, Alessandria, Italy

    A. Prokudin

Authors
  1. M. Anselmino
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  2. M. Boglione
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  3. U. D’Alesio
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  4. A. Kotzinian
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  5. S. Melis
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  6. F. Murgia
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  7. A. Prokudin
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  8. C. Türk
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Correspondence to F. Murgia.

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A. Schäfer

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Anselmino, M., Boglione, M., D’Alesio, U. et al. Sivers effect for pion and kaon production in semi-inclusive deep inelastic scattering. Eur. Phys. J. A 39, 89–100 (2009). https://doi.org/10.1140/epja/i2008-10697-y

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  • DOI: https://doi.org/10.1140/epja/i2008-10697-y

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