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Permanent URL to this publication: http://dx.doi.org/10.5167/uzh-42678

H1 Collaboration,; Del Degan, M; Egli, S; Grab, C; Müller, K; Perez, E; Straumann, U; Truöl, P (2010). Prompt photons in photoproduction at HERA. European Physical Journal C - Particles and Fields, 66(1-2):17-33.

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Abstract

The production of prompt photons is measured in the photoproduction regime of electron–proton scattering at HERA. The analysis is based on a data sample corresponding to a total integrated luminosity of 340 pb−1 collected by the H1 experiment. Cross sections are measured for photons with transverse momentum and pseudorapidity in the range $6<\ensuremath{E_{T}^{\gamma}}<15$  GeV and −1.0<η γ <2.4, respectively. Cross sections for events with an additional jet are measured as a function of the transverse energy and pseudorapidity of the jet, and as a function of the fractional momenta x γ and x p carried by the partons entering the hard scattering process. The correlation between the photon and the jet is also studied. The results are compared with QCD predictions based on the collinear and on the k T factorization approaches.

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15 citations in Web of Science®
14 citations in Scopus®
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Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:07 Faculty of Science > Physics Institute
DDC:530 Physics
Language:English
Date:2010
Deposited On:20 Jan 2011 10:06
Last Modified:27 Nov 2013 22:09
Publisher:Springer
ISSN:1434-6044
Publisher DOI:10.1140/epjc/s10052-010-1240-7

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