We analyse polarised Drell-Yan process using the factorisation method and derive operator definitions for polarised parton distribution functions. We demonstrate that a factorisation analogous to that in the unpolarised Drell-Yan case holds in this process. We study the leading order gluonic contribution to the first moment of polarised Drell-Yan function and show that it is consistent with results obtained from polarised deep inelastic scattering.
@article{arxiv.hep-ph/9208208,
title = {Can Polarised Drell-Yan Shed More Light On The Proton Spin?},
author = {Prakash Mathews and V. Ravindran},
journal= {arXiv preprint arXiv:hep-ph/9208208},
year = {2015}
}