Exclusive photoproduction of gamma mesons at HERA

Authors	S. Chekanov [Unknown] et al. G. Grigorescu A. Keramidas Show more E. Koffeman P. Kooijman A. Pellegrino H. Tiecke M. Vázquez L. Wiggers Show less
Publication date	2009
Journal	Physics Letters B
Volume | Issue number	680 | 1
Pages (from-to)	4-12
Organisations	Faculty of Science (FNWI) - Institute of Physics (IoP) - Institute for High Energy Physics (IHEF)
Abstract	The exclusive photoproduction reaction gamma p -> gamma p has been studied with the ZEUS experiment in ep collisions at HERA using an integrated luminosity of 468 pb(-1). The measurement covers the kinematic range 60 < W < 220 GeV and Q(2) < 1 GeV2, where W is the photon-proton centre-of-mass energy and Q(2) is the photon virtuality. These results, which represent the analysis of the full ZEUS data sample for this channel, are compared to predictions based on perturbative QCD.
Document type	Article
Published at	https://doi.org/10.1016/j.physletb.2009.07.066
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