Perturbative Contribution to the Sinφ Asymmetry in Inclusive Π
نویسندگان
چکیده
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 αS perturbative contribution to the cross section, integrated over the azimuthal angle. This leads to good agreement with recent HERMES data.
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