Diffractive Photoproduction of D*+/-(2010) at HERA

Simple item page
dc.creatorZEUS Collaboration
dc.creatorChekanov, S.
dc.date2007-03-30
dc.date2007-05-10
dc.date.accessioned2026-07-07T11:22:03Z
dc.date.available2026-07-07T11:22:03Z
dc.descriptionDiffractive photoproduction of D*+/-(2010) mesons was measured with the ZEUS detector at the ep collider HERA, using an integrated luminosity of 78.6 pb^{-1}. The D* mesons were reconstructed in the kinematic range: transverse momentum p_T(D*) > 1.9 GeV and pseudorapidity |eta(D*)| < 1.6, using the decay D*+ -> D0 pi+_s followed by D0 -> K- pi+ (+c.c.). Diffractive events were identified by a large gap in pseudorapidity between the produced hadronic state and the outgoing proton. Cross sections are reported for photon-proton centre-of-mass energies in the range 130 < W < 300 GeV and for photon virtualities Q^2 < 1 GeV^2, in two ranges of the Pomeron fractional momentum x_pom < 0.035 and x_pom < 0.01. The relative contribution of diffractive events to the inclusive D*+/-(2010) photoproduction cross section is about 6%. The data are in agreement with perturbative QCD calculations based on various parameterisations of diffractive parton distribution functions. The results are consistent with diffractive QCD factorisation.
dc.descriptionLaTeX2e, 29 pages, 9 Postscript figures, 4 tables, minor revisions, accepted for publication in the European Physical Journal C
dc.identifierhttps://arxiv.org/abs/hep-ex/0703046
dc.identifierhttp://arxiv.org/abs/hep-ex/0703046
dc.identifierEur.Phys.J.C51:301-315,2007
dc.identifierdoi:10.1140/epjc/s10052-007-0326-3
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/194440
dc.subjectHigh Energy Physics - Experiment
dc.titleDiffractive Photoproduction of D*+/-(2010) at HERA
dc.typetext

Files

Collections

arXiv