Description

• Title:
  Further studies of the photoproduction of isolated photons with a jet at HERA
• Creator:
  Abramowicz, H.;
  Abt, I.;
  Adamczyk, L.;
  Ciborowski, J.;
  Perlanski, W.
• Contributor:
  University of Warsaw, Faculty of Physics;
  Lódz University;
  m.wing@ucl.ac.uk
• Description:
  The ZEUS collaboration;
  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_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.;
  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. Article funded by SCOAP3
• Object availability:
  free access
• Rights:
  Uznanie autorstwa 3.0 Polska;
  http://creativecommons.org/licenses/by/3.0/pl
• Date:
  2016.04.27;
  2014
• Type:
  Article
• Language:
  English
• Format:
  application/pdf
• Publisher:
  Springer Science+Business Media on behalf of the Scuola Internazionale Superiore di Studi Avanzati
• Relation:
  Journal of High Energy Physics;8;
  2014
• Subject:
  Lepton-Nucleon Scattering;
  QCD;
  Photon production
• Identifier:
  1126-6708;
  http://hdl.handle.net/11089/17883 ;
  1029-8479;
  10.1007/JHEP08(2014)023
• Data provider:
  Repozytorium Uniwersytetu Łódzkiego
• Can I use it?:
  check license
• Type:
  image