Unintegrated gluon distributions in D± and dijet associated photoproduction at HERA

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–Marti...

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Bibliographic Details
Published in:The European physical journal. C, Particles and fields Particles and fields, 2006-09, Vol.47 (3), p.643-653
Main Authors: Lipatov, A.V., Zotov, N.P.
Format: Article
Language:English
Subjects:
Evolution
Gluons
Mesons
Photoproduction
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Summary: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.
ISSN:1434-6044
1434-6052
DOI:10.1140/epjc/s2006-02573-y