Unintegrated gluon distributions in D*± and dijet associated photoproduction at HERA
D.V. Skobeltsyn Institute of Nuclear Physics, M.V. Lomonosov Moscow State University, 119992, Moscow, Russia
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Revised: 13 February 2006
Published online: 14 July 2006
We consider the photoproduction of D*± mesons associated with two hadron jets at HERA collider in the framework of the kT-factorization approach. The unintegrated gluon densities in a proton are obtained from the full CCFM, from unified BFKL-DGLAP evolution equations as well as from the Kimber–Martin–Ryskin prescription. Resolved photon contributions are reproduced by the initial-state gluon radiation. We investigate different production rates and make a comparison with the recent experimental data taken by the ZEUS collaboration. Special attention is given to the specific dijet correlations which can provide unique information about non-collinear gluon evolution dynamics.
© Springer-Verlag, 2006