Beauty photoproduction at HERA: kt-factorization versus experimental data

Abstract

We present calculations of the beauty photoproduction at HERA collider in the framework of the kt-factorization approach. Both direct and resolved photon contributions are taken into account. The unintegrated gluon densities in a proton and in a photon are obtained from the full CCFM, from unified BFKL-DGLAP evolution equations as well as from the Kimber-Martin-Ryskin prescription. We investigate different production rates (both inclusive and associated with hadronic jets) and compare our theoretical predictions with the recent experimental data taken by the H1 and ZEUS collaborations. Special attention is put on the x_γ^{obs} variable which is sensitive to the relative contributions to the beauty production cross section.

29 pages, 15 figures, 2 tables

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Cited by in corpus (6)

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• Measurement of beauty photoproduction using decays into muons in dijet events at HERA
• The ratio of the beauty structure functions $R^b=F_L^b/F_2^b$ at low x
• Charm photoproduction at HERA: kt-factorization versus experimental data
• Deep inelastic beauty production at HERA in the kt-factorization approach
• Unintegrated gluon distributions in D* and dijet associated photoproduction at HERA