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          Institute: MPI für Physik     Collection: MPI für Physik     Display Documents



ID: 543544.0, MPI für Physik / MPI für Physik
Diffractive photoproduction of dijets in ep collisions at HERA
Authors:ZEUS Collaboration; Chekanov, S.
Date of Publication (YYYY-MM-DD):2008
Title of Journal:European Physical Journal C
Journal Abbrev.:Eur.Phys.J.C
Issue / Number:55
Start Page:177
End Page:191
Audience:Not Specified
Intended Educational Use:No
Abstract / Description:Diffractive photoproduction of dijets was measured with the ZEUS detector at the ep collider HERA using an integrated luminosity of 77.2 pb-1. The measurements were made in the kinematic range Q^2 < 1 GeV^2, 0.20 < y < 0.85 and x_pom < 0.025, where Q^2 is the photon virtuality, y is the inelasticity and x_pom is the fraction of the proton momentum taken by the diffractive exchange. The two jets with the highest transverse energy, E_T^jet, were required to satisfy E_T^jet > 7.5 and 6.5 GeV, respectively, and to lie in the pseudorapidity range -1.5 < eta^jet < 1.5. Differential cross sections were compared to perturbative QCD calculations using available parameterisations of diffractive parton distributions of the proton.
Classification / Thesaurus:ZEUS
Comment of the Author/Creator:31 pages, 6 figures, 5 tables, minor revisions, accepted by European Physical Journal C
External Publication Status:published
Document Type:Article
Communicated by:N.N.
Affiliations:MPI für Physik
Identifiers:LOCALID:MPP-2007-278
URL:http://www.slac.stanford.edu/spires/find/hep/www?r...
URL:http://arXiv.org/abs/arxiv:0710.1498
URL:http://publications.mppmu.mpg.de/?action=search&mp...
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