New observables in longitudinal single-spin asymmetries in semi-inclusive DIS
High Energy Physics - Phenomenology
2009-11-10 v1
Abstract
We analyze longitudinal beam and target single-spin asymmetries in semi-inclusive deep inelastic scattering and in jet deep inelastic scattering, including all possible twist-3 contributions as well as quark mass corrections. We take into account the path-ordered exponential in the soft correlators and show that it leads to the introduction of a new distribution and a new fragmentation function contributing to the asymmetries.
Cite
@article{arxiv.hep-ph/0405154,
title = {New observables in longitudinal single-spin asymmetries in semi-inclusive DIS},
author = {Alessandro Bacchetta and Piet J. Mulders and Fetze Pijlman},
journal= {arXiv preprint arXiv:hep-ph/0405154},
year = {2009}
}
Comments
8 pages