Single transverse spin asymmetries for semi-inclusive pion production in DIS
Abstract
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.
Keywords
Cite
@article{arxiv.hep-ph/9907269,
title = {Single transverse spin asymmetries for semi-inclusive pion production in DIS},
author = {M. Anselmino and M. Boglione and F. Murgia},
journal= {arXiv preprint arXiv:hep-ph/9907269},
year = {2007}
}
Comments
LaTeX, 4 pages, 2 eps figures, uses epsfig.sty. Talk delivered by F. Murgia at the DESY Workshop "Polarized Protons at High Energies - Accelerator Challenges and Physics Opportunities", DESY - Hamburg, 17-20 May 1999, to appear in the proceedings