arXiv:hep-ph/0309289·v1·High Energy Physics — Phenomenology
An improved analysis of k_T effects for SSA in hadronic collisions
U. D'Alesio🇮🇹 · F. Murgia (University and INFN, Cagliari, Italy)🇮🇹
Abstract
The role of intrinsic transverse momentum both in unpolarized and polarized processes is discussed. We consider inclusive cross sections for pion production in hadronic collisions and for Drell-Yan processes. We reanalyze transverse single spin asymmetries (SSA) in inclusive pion production, p(transv. polarized) p --> pion + X, in terms of Sivers effect and show its contribution to A_{UL} in semi-inclusive DIS (SIDIS).
Comments: LaTeX, 5 pages, 2 ps figures, uses dis03.cls. Talk delivered by U. D'Alesio at the ``XI International Workshop on Deep Inelastic Scattering'' (DIS2003), 23-27 April, 2003, St. Petersburg