Prompt photon photoproduction at DESY HERA in the k{sub T}-factorization approach

Journal Article · Thu Sep 01 04:00:00 EDT 2005 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PhysRevD.72.054002· OSTI ID:20711432

Lipatov, A V; Zotov, N P ^[1]

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1. D.V. Skobeltsyn Institute of Nuclear Physics, M.V. Lomonosov Moscow State University, 119992 Moscow (Russian Federation)

We present calculations of the prompt photon photoproduction at HERA collider in the k{sub T}-factorization approach. Both direct and resolved contributions are taken into account. The conservative error analysis 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 noncollinear evolution dynamics. We compare our theoretical predictions with recent experimental data taken by the H1 and ZEUS collaborations.

• OSTI ID: 20711432
• Journal Information: Physical Review. D, Particles Fields, Journal Name: Physical Review. D, Particles Fields Journal Issue: 5 Vol. 72; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ANGULAR CORRELATION
COMPARATIVE EVALUATIONS
DENSITY
ELECTRON-PROTON INTERACTIONS
ERRORS
FACTORIZATION
GLUONS
HERA STORAGE RING
MULTIPARTICLE SPECTROMETERS
PARTICLE IDENTIFICATION
PHOTON-PROTON INTERACTIONS
PHOTONS
PHOTOPRODUCTION
PROTONS
QUANTUM CHROMODYNAMICS
QUARKS
TRANSVERSE MOMENTUM