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Journal Article/Internal Report DESY-2014-03355
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Further studies of the photoproduction of isolated photons with a jet at HERA

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2014
Springer Berlin

Journal of high energy physics 2014(8), 23 () [10.1007/JHEP08(2014)023]
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Report No.: DESY-14-086; arXiv:1405.7127

Abstract: In 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, $x_\gamma^{\mathrm{meas}}$, contributing to the photon-jet final state. Cross sections are evaluated in the photon transverse-energy and pseudorapidity ranges $6 < E_T^{\gamma} < 15$ GeV and $-0.7 < \eta^{\gamma} < 0.9$, and for jet transverse-energy and pseudorapidity ranges $4 < E_T^{\rm jet} < 35$ GeV and $-1.5 < \eta^{\rm jet} < 1.8$, for an integrated luminosity of 374 $\mathrm{pb}^{-1}$. 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.

Keyword(s): Lepton-Nucleon Scattering (LCSH) ; QCD (LCSH) ; Photon production (LCSH) ; electron p: deep inelastic scattering ; photon: photoproduction ; photon: isolated production ; jet: associated production ; cross section: measured ; transverse energy: dependence ; rapidity dependence ; angular correlation ; energy dependence ; rapidity: difference ; ZEUS ; experimental results ; DESY HERA Stor ; Monte Carlo ; 318 GeV-cms

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Note: 26 pages, 7 figures. Submitted to JHEP
Contributing Institute(s):
  1. ZEUS Kollaboration (ZEUS)
Research Program(s):
  1. Experiments at HERA (ZEUS) (POF2-511) (POF2-511)
Experiment(s):
  1. HERA: ZEUS

Appears in the scientific report 2014
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Creative Commons Attribution CC BY 4.0 ; SCOAP3 OpenAccess ; OpenAccess ; OpenAccess ; Current Contents - Social and Behavioral Sciences ; JCR ; NationallizenzNationallizenz ; SCOPUS ; Science Citation Index ; Science Citation Index Expanded ; Thomson Reuters Master Journal List ; Web of Science Core Collection
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 Record created 2014-09-09, last modified 2025-07-17
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