Digluon contribution to $J/\psi$ production
High Energy Physics - Phenomenology
2019-04-26 v2
Abstract
In this paper we study the contribution of the double parton distributions of gluons to the charmonium production. Despite being suppressed in the heavy quark mass limit, numerically this contribution gives a sizeable correction to the leading order factorization result in LHC kinematics due to enhancement of gluonic densities in the small Bjorken limit. This contribution is not suppressed at large momenta and thus presents one of the complementary mechanisms of charmonia production in this kinematics.
Keywords
Cite
@article{arxiv.1801.09974,
title = {Digluon contribution to $J/\psi$ production},
author = {Ivan Schmidt and Marat Siddikov},
journal= {arXiv preprint arXiv:1801.09974},
year = {2019}
}
Comments
10 pages, 8 figures