Factorization and Universality in Azimuthal Asymmetries
arXiv:hep-ph/0411307 · doi:10.1142/9789812701909_0085
Abstract
The theoretical status on transverse momentum dependent factorization in semi-inclusive DIS and Drell-Yan is not clear in contrast to claims in the literature in which gauge links only at one loop were considered explicitly. Recent obtained results beyond this order questions the validity of these claims and will be briefly discussed. Possible input from experiments to solve these matters will be outlined.
arXiv commentMinor modifications. Presented at Spin 2004 Trieste, 4 pages and 1 figure