The gluon content of the proton, in the high-energy regime, is embodied by the unintegrated gluon distribution (UGD), which describes the gluon emission probability, with a given longitudinal momentum fraction and transverse momentum. The UGD, formulated within the -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 non-trivial testfield for discriminating among existing models of UGD.

Leptoproduction of rho mesons as discriminator for the unintegrated gluon distribution in the proton

A. D. Bolognino;F. G. Celiberto;A. Papa
2019

Abstract

The gluon content of the proton, in the high-energy regime, is embodied by the unintegrated gluon distribution (UGD), which describes the gluon emission probability, with a given longitudinal momentum fraction and transverse momentum. The UGD, formulated within the -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 non-trivial testfield for discriminating among existing models of UGD.
Gluon distribution function in the proton
Vector meson electroproduction
High-energy perturbative QCD and kt-factorization
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/20.500.11770/295790
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