Speaker
Prof.
Jacques Soffer
(Temple University, Philadelphia, PA, USA)
Description
We first recall some recent successful predictions obtained from the statistical approach of the parton distributions for unpolarized and polarized both in Deep Inelastic Scattering and hadronic collisions.
The statistical approach has been extended to the interesting situation where the PDF have, in addition to the usual Bjorken $x$ dependence, an explicit $k_T$ transverse momentum dependence (TMD) and this might be used in future calculations with no $k_T$ integration. This is a very important topic, with a growing interest because it is now clear that several new phenomena are sensitive to TMD effects, possibly related to the orbital angular momentum component of the nucleon spin structure.
Primary author
Prof.
Jacques Soffer
(Temple University, Philadelphia, PA, USA)