Process dependence of the gluon Sivers function in inclusive $pp$ collisions: phenomenology
High Energy Physics - Phenomenology
2019-02-08 v1
Abstract
Within the so-called color gauge invariant generalized parton model, a TMD scheme including initial- (ISI) and final-state (FSI) interactions, we present a phenomenological analysis of available SSA data for pion and -meson production in collisions. This allows us, for the first time, to put a preliminary constraint on the two universal types of gluon Sivers function entering the model. Predictions for SSAs in and direct photon production, as well as a comparison with the simpler generalized parton model (without ISIs and FSIs), are also presented.
Keywords
Cite
@article{arxiv.1902.02425,
title = {Process dependence of the gluon Sivers function in inclusive $pp$ collisions: phenomenology},
author = {U. D'Alesio and C. Flore and F. Murgia and C. Pisano and P. Taels},
journal= {arXiv preprint arXiv:1902.02425},
year = {2019}
}
Comments
7 pages, 6 figures (11 plots); to appear in the Proceedings of the 23rd International SPIN Symposium (SPIN 2018), Ferrara, Italy, September 10-14, 2018