Chiral-Odd Contribution to Single-Transverse Spin Asymmetry in Hadronic Pion Production

Abstract

A formula for the single transverse spin asymmetry in the large-$p_T$ pion production in the nucleon-nucleon collision is derived. We focuss on the chiral-odd contribution where the transversity distribution and the chiral-odd spin-independent twist-3 distribution contributes. This contribution is expected to give rise to a large effect at $x_F\to -1$.

Latex file 10 pages + 2 figures attached as PS and EPS files. A minor correction is included

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