A_N in inclusive lepton-proton collisions

Abstract

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.

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