Measurement of isolated photons accompanied by jets in deep inelastic ep scattering
Entity
UAM. Departamento de Física TeóricaPublisher
ElsevierDate
2012-08-29Citation
10.1016/j.physletb.2012.07.031
Physics Letters B 715.1-3 (2012) 88-97
ISSN
0370-2693 (print); 1873-2445 (online)DOI
10.1016/j.physletb.2012.07.031Funded by
We appreciate the contributions to the construction and maintenance of the ZEUS detector of 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 H. Spiesberger and N. Zotov for providing theoretical resultsEditor's Version
http://dx.doi.org/10.1016/j.physletb.2012.07.031Subjects
FísicaNote
Artículo escrito por un elevado número de autores, solo se referencian el que aparece en primer lugar, el nombre del grupo de colaboración, si le hubiere, y los autores pertenecientes a la UAMRights
© 2012 ElsevierAbstract
The production of isolated high-energy photons accompanied by jets has been measured in deep inelastic ep scattering with the ZEUS detector at HERA, using an integrated luminosity of 326 pb−1. Measurements were made for exchanged photon virtualities, Q 2, in the range 10 to 350 GeV2. The photons were measured in the transverse-energy and pseudorapidity ranges 4 < Eγ T < 15 GeV and −0.7 < ηγ < 0.9, and the jets were measured in the transverse-energy and pseudorapidity ranges 2.5 < Ejet T < 35 GeV and −1.5 < ηjet < 1.8. Differential cross sections are presented as functions of these quantities. Perturbative QCD predictions give a reasonable description of the shape of the measured cross sections over most of the kinematic range, but the absolute normalisation is typically in disagreement by 20–30%
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Google Scholar:Abramowicz, Halina
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Glasman Kuguel, Claudia Beatriz
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Barreiro Alonso, Fernando
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Terrón Cuadrado, Juan
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Peso Malagón, José del
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ZEUS Collaboration
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