Abstract

We consider the sinφ single target-spin asymmetry in deep-inelastic π + inclusive electroproduction off a longitudinally polarized target. We show that at larger transverse momentum of the outgoing hadron the evaluated asymmetry decreases if one takes into account the first order α S perturbative contribution to the cross section, integrated over the azimuthal angle. This leads to good agreement with recent HERMES data.

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