Double-spin cos phi asymmetry in semi-inclusive electroproduction

K. A. Oganessyan, P.J.G. Mulders, E. De Sanctis

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    Abstract

    We consider the double-spin cos φ asymmetry for pion electroproduction in semi-inclusive deep inelastic scattering of longitudinally polarized leptons off longitudinally polarized protons. We estimate the size of the asymmetry in the approximation where all twist-3 interaction-dependent distribution and fragmentation functions are set to zero. In that approximation at HERMES kinematics a sizable negative cos double-spin asymmetry for π
    Original languageEnglish
    Pages (from-to)87-92
    JournalPhysics Letters B
    Volume532
    Issue number1-2
    DOIs
    Publication statusPublished - 2002

    Bibliographical note

    Double-spin cos phi asymmetry in semi-inclusive electroproduction

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