Perturbative contribution to the sin(phi) asymmetry in inclusive pi^{+} electroproduction

Details Perturbative contribution to the sin(phi) asymmetry in inclusive pi^{+} electroproduction Perturbative contribution to the sin(phi) asymmetry in inclusive pi^{+} electroproduction

2000-10-06

arxiv.org/abs/hep-ph/0010063v2

Nucl.Phys.Proc.Suppl. 96 (2001) 146-149

Physics

High Energy Physics

High Energy Physics - Phenomenology

4 pages with one figure, LaTeX, typos corrected. Contribution to the Proceedings of the QCD'00 Euroconference, Montpellier, 6-

Scientific paper

10.1016/S0920-5632(01)01122-7

We consider the sin(phi) single target-spin asymmetry in deep-inelastic pi^{+} 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 alpha_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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