Heavy quark &amp; direct photon production and heavy quark parton densities

descriptionPublicationkeyboard_double_arrow_right Article , Preprint , Other literature type 01 May 2011Embargo end date: 01 Jan 2010 English Publisher:Elsevier BVJournal:Nuclear Physics B - Proceedings Supplements, volume 214, pages 114-117 (issn: 0920-5632,

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Authors: Stavreva, T.;

doi: 10.1016/j.nuclphysbps.2011.03.069 , 10.48550/arxiv.1012.1505

arXiv: 1012.1505

Heavy quark & direct photon production and heavy quark parton densities

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Abstract

Direct photon production in association with a heavy quark can serve as an excellent tool for the study of the heavy quark distributions. Currently it is believed that heavy quarks are produced radiatively inside the nucleon, and so there is no need to take into account heavy quark parameters inside global PDF analyses. Certain models taking into account the possibility of an intrinsic charm component exist. Here we present how these affect the γ+ c cross section. While at pA collisions the potential of this process to constrain the gluon nuclear PDF which is currently largely unconstrained is presented.

Quarkonium 2010 Proceedings

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Keywords

High Energy Physics - Phenomenology, High Energy Physics - Phenomenology (hep-ph), FOS: Physical sciences

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