Single transverse spin asymmetries for semi-inclusive pion production in DIS

Details Single transverse spin asymmetries for semi-inclusive pion production in DIS Single transverse spin asymmetries for semi-inclusive pion production in DIS

1999-07-07

arxiv.org/abs/hep-ph/9907269v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

LaTeX, 4 pages, 2 eps figures, uses epsfig.sty. Talk delivered by F. Murgia at the DESY Workshop "Polarized Protons at High En

Scientific paper

We present a phenomenological approach to the description of single transverse spin asymmetries (STSA) in inclusive hadron production. It generalizes the pQCD formalism for high energies and large p_T inclusive hadron production processes, A+B -> C+X, by incorporating quark intrinsic motion in the spin dependent quark distribution and fragmentation functions. We concentrate here on spin and k_T effects in the fragmentation process of a polarized quark into the observed hadron, and give predictions for STSA in semi-inclusive deep inelastic scattering, l + p -> pion + X and gamma^* + p -> pion + X.

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