Single Transverse-Spin Asymmetries in Drell-Yan Processes
High Energy Physics - Phenomenology
2014-02-24 v3
Abstract
The asymmetry in the angular distribution of Drell--Yan dilepton pairs generated in collisions where just one nucleon is transversely polarised has been examined in the literature with a variety of results, mainly differing by factors of two. We re-evaluate the asymmetry via twist-3 contributions in collinear factorisation. In order to allow complete and in-depth comparison with existing calculations, we supply all calculational details.
Cite
@article{arxiv.1307.5178,
title = {Single Transverse-Spin Asymmetries in Drell-Yan Processes},
author = {Gabriele Re Calegari and Philip G. Ratcliffe},
journal= {arXiv preprint arXiv:1307.5178},
year = {2014}
}
Comments
8 pages, 3 figures, final version, accepted for publication in Eur. Phys. J. C