Description
The gluon content of the proton, in the high-energy regime, is embodied by the unintegrated gluon distribution (UGD), which describes the probability that a gluon can be emitted by a colliding proton, with a given longitudinal momentum fraction and transverse momentum.
The UGD, which is formulated within the k$_{T}$-factorization approach, has universal validity and several models for it have been proposed so far.
We will show that the polarized $\rho$-meson leptoproduction at HERA is a not trivial textfield for discriminating among existing models of UGD.
Authors
Andrèe Dafne Bolognino
(U. of Calabria & INFN Cosenza)
Dr
Francesco Giovanni Celiberto
(IFT UAM-CSIC, Madrid)
Dmitry Ivanov
Alessandro Papa
(U. of Calabria & INFN Cosenza)
