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High Energy Physics - Phenomenology

arXiv:hep-ph/0506044 (hep-ph)
[Submitted on 6 Jun 2005]

Title:Prompt photon photoproduction at HERA in the k_T-factorization approach

Authors:A.V. Lipatov, N.P. Zotov
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Abstract: We present calculations of the prompt photon photoproduction at HERA collider in the k_T-factorization approach. Both direct and resolved contributions are taken into account. The conservative error analisys is performed. The unintegrated parton densities in a proton and in a photon are determined using the Kimber-Martin-Ryskin prescription. We investigate both inclusive and associated with jet prompt photon photoproduction rates. In particular, we study the angular correlations between produced photon and hadronic jet in the transverse momentum plane which can provide a unique information about non-collinear evolution dynamics. We compare our theoretical predictions with recent experimental data taken by the H1 and ZEUS collaborations.
Comments: 34 pages, 18 figures
Subjects: High Energy Physics - Phenomenology (hep-ph)
Cite as: arXiv:hep-ph/0506044
  (or arXiv:hep-ph/0506044v1 for this version)
  https://doi.org/10.48550/arXiv.hep-ph/0506044
Journal reference: Phys.Rev. D72 (2005) 054002
Related DOI: https://doi.org/10.1103/PhysRevD.72.054002

Submission history

From: Artem Lipatov [view email]
[v1] Mon, 6 Jun 2005 08:17:05 UTC (157 KB)
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