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arXiv · 1902.04520

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

Andrèe Dafne Bolognino·Francesco Giovanni Celiberto·Dmitry Yu. Ivanov·Alessandro Papa
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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 $\kappa$-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 testfield for discriminating among existing models of UGD.

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Andrèe Dafne Bolognino, Francesco Giovanni Celiberto, Dmitry Yu. Ivanov, Alessandro Papa. 2019-02-12. Leptoproduction of $\rho$-mesons as discriminator for the unintegrated gluon distribution in the proton. https://arxiv.org/abs/1902.04520

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