Speaker
Umberto D'Alesio
(CA)
Description
Within the so-called color gauge invariant generalized parton model (CGI-GPM), we will discuss how a phenomenological analysis of available SSA data for pion, D meson and J/psi production in pp collisions can be used to put the first constraints on the two universal types of gluon Sivers function. A comparison with the simpler generalized parton model, as well as predictions for SSAs in direct photon production, are also presented.
Primary author
Umberto D'Alesio
(CA)
