Work

Exclusive heavy-vector-meson photoproduction in p p and p Pb collisions within the generalized parton distribution approach: A phenomenological analysis

Year: 2025

Type: article

Abstract: The exclusive J / ψ photoproduction and the exclusive Υ photoproduction in proton-proton ( p p ) and proton-lead ( p Pb ) collisions at the energies available at the CERN Large Hadron Collider are investigated using the generalized parton distribution approach. Assuming the Goloskokov-Kroll model, we estimate the corresponding total cross sections and rapidity distributions considering different parametrizations for the unpolarized gluon distribution of the proton. In particular, we compare the linear predictions, associated with Dokshitzer-Gribov-Lipatov-Altarelli-Parisi evolution, with those derived taking into account the leading nonlinear corrections resulting from gluon recombination. The dependence of our predictions on the choice for the factorization scale is discussed.

Source: Physical Review C

DOI: 10.1103/8zkq-zll1

Authors: Ya-Ping Xie, Victor P. Gonçalves

Institutions: Institute of Modern Physics, University of Chinese Academy of Sciences, Universidade Federal de Pelotas

Language: English

Topic: Quantum Chromodynamics and Particle Interactions

Subfield: Nuclear and High Energy Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: hybrid