Journal
PHYSICS LETTERS B
Volume 699, Issue 1-2, Pages 93-97Publisher
ELSEVIER
DOI: 10.1016/j.physletb.2011.03.057
Keywords
Small-x physics; BFKL and CCFM evolution; k(T)-Factorization approach; Prompt photon production
Funding
- Russian Federation [MK-3977.2011.2]
- FASI of Russian Federation [NS-4142.2010.2]
- RFBR [11-02-01454-a]
- FASI [02.740.11.0244]
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We study the possibility to analyse the data on inclusive prompt photon production at first LHC runs in the framework of the k(T)-factorization QCD approach. Our consideration is based on the amplitude for the production of a single photon associated with a quark pair in the fusion of two off-shell gluons. The quark component is taken into account separately using the quark-gluon Compton scattering and quark-antiquark annihilation QCD subprocesses. The unintegrated parton densities in a proton are determined using the Kimber-Martin-Ryskin (KMR) prescription as well as the CCFM evolution equation. (C) 2011 Elsevier B.V. All rights reserved.
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