Author:
Huayra Edgar,de Oliveira Emmanuel G.,Pasechnik Roman
Abstract
Abstract
In this article, we propose a novel channel for phenomenological studies of the double-parton scattering (DPS) based upon associated production of charm $$c{\bar{c}}$$cc¯ and bottom $$b{\bar{b}}$$bb¯ quark pairs in well-separated rapidity intervals in ultraperipheral high-energy proton–nucleus collisions. This process provides direct access to the double-gluon distribution in the proton at small-x and enables one to test the factorized DPS pocket formula. We have made the corresponding theoretical predictions for the DPS contribution to this process at typical LHC energies and beyond and we compute the energy-independent (but photon momentum fraction dependent) effective cross section.
Funder
Fundação de Amparo à Pesquisa e Inovação do Estado de Santa Catarina
H2020 European Research Council
Ministry of Education, Youth and Sports of the Czech Republic
Conselho Nacional de Desenvolvimento Científico e Tecnológico
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
Comisión Nacional de Investigación Científica y Tecnológica
Vetenskapsrådet
European Cooperation in Science and Technology
Publisher
Springer Science and Business Media LLC
Subject
Physics and Astronomy (miscellaneous),Engineering (miscellaneous)
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