Some estimates for the transverse single spin asymmetry, A_N, in the inclusive processes l p(transv. pol.) -> h X are compared with new experimental data. The calculations are based on the Sivers and Collins functions as extracted from SIDIS azimuthal asymmetries, within a transverse momentum dependent factorization approach. The values of A_N thus obtained agree in sign and shape with the data. Predictions for future experiments are also given.
@article{arxiv.1407.3802,
title = {A_N in inclusive lepton-proton collisions},
author = {M. Anselmino and M. Boglione and U. D'Alesio and S. Melis and F. Murgia and A. Prokudin},
journal= {arXiv preprint arXiv:1407.3802},
year = {2014}
}
Comments
6 pages, 10 eps figures, uses PoS.cls. Talk delivered by U. D'Alesio at the "XXII International Workshop on Deep-Inelastic Scattering and Related Subjects" (DIS 2014), Warsaw, Poland, 28 April - 2 May 2014. To appear in PoS DIS 2014