Testing for kt-factorization with inclusive prompt photon production at LHC

A.V. Lipatov; M.A. Malyshev; N.P. Zotov

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Testing for kt-factorization with inclusive prompt photon production at LHC

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arxiv 1102.1134 v3 pith:LCOELJK2 submitted 2011-02-06 hep-ph

A.V. Lipatov , M.A. Malyshev , N.P. Zotov This is my paper · ORCID

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keywords photonproductioninclusivekt-factorizationpromptquarkaccountamplitude

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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 kt-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 scatterring 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.

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