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arXiv · hep-ph/0201061

Double-spin cos(phi) Asymmetry in Semi-inclusive Electroproduction

K. A. Oganessyan·P. J. Mulders·E. De Sanctis
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Abstract

We consider the double-spin cos(phi) 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(phi) double-spin asymmetry for pi+ electroproduction is predicted.

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K. A. Oganessyan, P. J. Mulders, E. De Sanctis. 2002-03-21. Double-spin cos(phi) Asymmetry in Semi-inclusive Electroproduction. https://doi.org/10.1016/s0370-2693(02)01532-0

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