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

K. A. Oganessyan·N. Bianchi·E. De Sanctis·W. -D. Nowak
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Abstract

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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K. A. Oganessyan, N. Bianchi, E. De Sanctis, W. -D. Nowak. 2000-10-08. Perturbative contribution to the sin(phi) asymmetry in inclusive pi^{+} electroproduction. https://doi.org/10.1016/s0920-5632(01)01122-7

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