Nov 25 – 29, 2019
University of Pavia
Europe/Rome timezone

Diffractive leptoproduction of $\rho$ and $\phi$ light vector mesons via small-x unintegrated gluon density

Nov 26, 2019, 2:30 PM
Aula Foscolo (University of Pavia)

Aula Foscolo

University of Pavia

Via Strada Nuova 65, Pavia


Andrèe Dafne Bolognino (Università della Calabria & INFN-Cosenza)


The unintegrated gluon distribution (UGD) provides the description of the gluon content in the proton in the high-energy regime and it is formulated in $\kappa_T$-factorization approach. In this theoretical framework, the helicity amplitude is a convolution of the UGD in the proton with the impact factor, which depends on the considered process and where the structure of the meson is encoded by distribution amplitude (DA).
We apply $\kappa_T$-factorization approach, exploiting two different UGD models, in order to give predictions for polarized cross sections $\sigma_L$ and $\sigma_T$ of two interesting channels: the leptoproduction of $\rho$ and $\phi$ mesons. We compare results with H1 and ZEUS measurements.

Primary author

Andrèe Dafne Bolognino (Università della Calabria & INFN-Cosenza)

Presentation materials