Sivers and Collins effects in polarized pp scattering processes
M. Anselmino (1), M. Boglione (1), U. D'Alesio (2,3), E. Leader (4),, S. Melis (1), F. Murgia (3) ((1) University, INFN, Torino, Italy, (2), University of Cagliari (Italy), (3) INFN, Cagliari, Italy, (4) Imperial, College, London, U.K.)
TL;DR
This paper reviews the current understanding of Sivers and Collins effects in polarized proton-proton collisions, updating models with recent SIDIS data and predicting single spin asymmetries at RHIC.
Contribution
It provides a reassessment of the Collins effect and introduces new predictions for SSAs using updated fragmentation functions and SIDIS data within the GPM framework.
Findings
Updated predictions for SSA in pion and kaon production at RHIC.
Reassessment of the Collins effect with recent SIDIS data.
Enhanced understanding of transverse spin asymmetries in polarized pp collisions.
Abstract
We summarize the present phenomenology of Sivers and Collins effects for transverse single spin asymmetries in polarized proton-proton collisions within the framework of the generalized parton model (GPM). We will discuss a reassessment of the Collins effect and some preliminary predictions for SSA's in p(pol) p -> pi,K + X processes at RHIC obtained using updated information from SIDIS data and a new set of meson fragmentation functions.
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Taxonomy
TopicsRadiation Detection and Scintillator Technologies · Atomic and Subatomic Physics Research · Inorganic Fluorides and Related Compounds