Probing double parton scattering via associated open charm and bottom production in ultraperipheral pA collisions

0511830 - ÚJF 2020 RIV US eng J - Journal Article
Huayra, E. - de Oliveira, E. G. - Pasechnik, Roman
Probing double parton scattering via associated open charm and bottom production in ultraperipheral pA collisions.
European Physical Journal C. Roč. 79, č. 10 (2019), č. článku 880. ISSN 1434-6044. E-ISSN 1434-6052
R&D Projects: GA MŠMT(CZ) LTT17018
Institutional support: RVO:61389005
Keywords : LHC * double-patron scattering
OECD category: Particles and field physics
Impact factor: 4.389, year: 2019
Method of publishing: Open access
https://doi.org/10.1140/epjc/s10052-019-7388-x

In this article, we propose a novel channel for phenomenological studies of the double-parton scattering (DPS) based upon associated production of charm c (c) over bar and bottom b (b) over bar 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.
Permanent Link: http://hdl.handle.net/11104/0302073