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Further studies of the photoproduction of isolated photons with a jet at HERA

dc.contributor.authorAbramowicz, H.
dc.contributor.authorAbt, I.
dc.contributor.authorAdamczyk, L.
dc.contributor.authorCiborowski, J.
dc.contributor.authorPerlanski, W.
dc.date.accessioned2016-04-27T08:18:20Z
dc.date.available2016-04-27T08:18:20Z
dc.date.issued2014
dc.identifier.issn1126-6708
dc.identifier.urihttp://hdl.handle.net/11089/17883
dc.descriptionThe ZEUS collaborationpl_PL
dc.description.abstractIn this extended analysis using the ZEUS detector at HERA, the photoproduction of isolated photons together with a jet is measured for different ranges of the fractional photon energy, x_γ^{meas}, contributing to the photon-jet final state. Cross sections are evaluated in the photon transverse-energy and pseudorapidity ranges 6 < E_T^γ < 15 GeV and −0.7 < η^γ < 0.9, and for jet transverse-energy and pseudorapidity ranges 4 < E_T^{jet} < 35 GeV and −1.5 < η^{jet} < 1.8, for an integrated luminosity of 374 pb^{−1}. The kinematic observables studied comprise the transverse energy and pseudorapidity of the photon and the jet, the azimuthal difference between them, the fraction of proton energy taking part in the interaction, and the difference between the pseudorapidities of the photon and the jet. Higher-order theoretical calculations are compared to the results.pl_PL
dc.description.sponsorshipWe appreciate the contributions to the construction, maintenance and operation of the ZEUS detector made by many people who are not listed as authors. The HERA machine group and the DESY computing staff are especially acknowledged for their success in providing excellent operation of the collider and the data-analysis environment. We thank the DESY directorate for their strong support and encouragement. We also thank M. Fontannaz, G. Heinrich, A. Lipatov, M. Malyshev and N. Zotov for providing assistance and theoretical results. Article funded by SCOAP3pl_PL
dc.language.isoenpl_PL
dc.publisherSpringer Science+Business Media on behalf of the Scuola Internazionale Superiore di Studi Avanzatipl_PL
dc.relation.ispartofseriesJournal of High Energy Physics;8
dc.rightsUznanie autorstwa 3.0 Polska*
dc.rights.urihttp://creativecommons.org/licenses/by/3.0/pl/*
dc.subjectLepton-Nucleon Scatteringpl_PL
dc.subjectQCDpl_PL
dc.subjectPhoton productionpl_PL
dc.titleFurther studies of the photoproduction of isolated photons with a jet at HERApl_PL
dc.typeArticlepl_PL
dc.page.number1-26pl_PL
dc.contributor.authorAffiliationUniversity of Warsaw, Faculty of Physicspl_PL
dc.contributor.authorAffiliationLódz Universitypl_PL
dc.identifier.eissn1029-8479
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dc.contributor.authorEmailm.wing@ucl.ac.ukpl_PL
dc.identifier.doi10.1007/JHEP08(2014)023
dc.relation.volume2014pl_PL


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Uznanie autorstwa 3.0 Polska
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