Beauty production in two-photon interactions at LEP2: kt-factorization versus data

Details Beauty production in two-photon interactions at LEP2: kt-factorization versus data Beauty production in two-photon interactions at LEP2: kt-factorization versus data

2007-11-20

arxiv.org/abs/0711.3069v1

JETP Lett.87:7-11,2008

Physics

High Energy Physics

High Energy Physics - Phenomenology

10 pages, 4 figures

Scientific paper

10.1007/s11448-008-1003-y

Inclusive beauty quark production in photon-photon collisions at CERN LEP2 is considered in the framework of the kt-factorization approach. Both direct and resolved photon contributions are taken into account. The unintegrated gluon distributions in a photon are either obtained from the full CCFM evolution equation or from the Kimber-Martin-Ryskin prescription. The predicted beauty cross section reasonably agrees with the recent experimental data taken by the ALEPH collaboration. We argue that theoretical and experimental studies of the azimuthal correlations in heavy quark production at high energies can serve as a crucial probe of the unintegrated gluon densities.

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