Photoproduction of isolated photons, inclusively and with a jet, at HERA

Abramowicz, H.; Abt, I.; Adamczyk, L.; Ciborowski, J.; Perlański, W.

dc.contributor.author	Abramowicz, H.
dc.contributor.author	Abt, I.
dc.contributor.author	Adamczyk, L.
dc.contributor.author	Ciborowski, J.
dc.contributor.author	Perlański, W.
dc.date.accessioned	2016-05-05T12:53:06Z
dc.date.available	2016-05-05T12:53:06Z
dc.date.issued	2014
dc.identifier.issn	0370-2693
dc.identifier.uri	http://hdl.handle.net/11089/17948
dc.description	ZEUS Collaboration	pl_PL
dc.description.abstract	The photoproduction of isolated photons, both inclusive and together with a jet, has been measured with the ZEUS detector at HERA using an integrated luminosity of 374 pb^{−1}. Differential cross sections are presented in the isolated-photon transverse-energy and pseudorapidity ranges 6 < E^γ_T < 15 GeV and −0.7 < η^γ < 0.9, and for jet transverse-energy and pseudorapidity ranges 4 < E^{jet}_T < 35 GeV and −1.5 <η^{jet} < 1.8, for exchanged-photon virtualities Q^2 < 1 GeV^2. Differential cross sections are also presented for inclusive isolated-photon production as functions of the transverse energy and pseudorapidity of the photon. Higher-order theoretical calculations are compared to the results.	pl_PL
dc.description.sponsorship	We 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. Funded by SCOAP3	pl_PL
dc.language.iso	en	pl_PL
dc.publisher	Elsevier B.V.	pl_PL
dc.relation.ispartofseries	Physics Letters B;730
dc.rights	Uznanie autorstwa 3.0 Polska	*
dc.rights.uri	http://creativecommons.org/licenses/by/3.0/pl/	*
dc.title	Photoproduction of isolated photons, inclusively and with a jet, at HERA	pl_PL
dc.type	Article	pl_PL
dc.page.number	293–301	pl_PL
dc.contributor.authorAffiliation	University of Warsaw, Faculty of Physics	pl_PL
dc.contributor.authorAffiliation	Łódź University	pl_PL
dc.identifier.eissn	1873-2445
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dc.contributor.authorEmail	m.wing@ucl.ac.uk	pl_PL
dc.identifier.doi	10.1016/j.physletb.2014.01.062

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