Beauty photoproduction at HERA: kt-factorization versus experimental data

Details Beauty photoproduction at HERA: kt-factorization versus experimental data Beauty photoproduction at HERA: kt-factorization versus experimental data

2006-01-28

arxiv.org/abs/hep-ph/0601240v1

Phys.Rev.D73:114018,2006

Physics

High Energy Physics

High Energy Physics - Phenomenology

29 pages, 15 figures, 2 tables

Scientific paper

10.1103/PhysRevD.73.114018

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_{\gamma}^{obs} variable which is sensitive to the relative contributions to the beauty production cross section.

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