Measurement of the Isolated Prompt Photon Production Cross Section in pp Collisions at {radical}(s)=7 TeV

Journal Article · Fri Feb 25 00:00:00 EST 2011 · Physical Review Letters

DOI:https://doi.org/10.1103/PHYSREVLETT.106.082001· OSTI ID:21562062

Khachatryan, V; Sirunyan, A M; Tumasyan, A ^[1]; Adam, W; Bergauer, T; Dragicevic, M; Eroe, J; Fabjan, C; Friedl, M; Fruehwirth, R; Ghete, V M; Hammer, J; Haensel, S; Hartl, C; Hoch, M; Hoermann, N; Hrubec, J; Jeitler, M; Kasieczka, G; Kiesenhofer, W ^[2]

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1. Yerevan Physics Institute, Yerevan (Armenia)
2. Institut fuer Hochenergiephysik der OeAW, Wien (Austria)

The differential cross section for the inclusive production of isolated prompt photons has been measured as a function of the photon transverse energy E{sub T}{sup {gamma}} in pp collisions at {radical}(s)=7 TeV using data recorded by the CMS detector at the LHC. The data sample corresponds to an integrated luminosity of 2.9 pb{sup -1}. Photons are required to have a pseudorapidity |{eta}{sup {gamma}}|<1.45 and E{sub T}{sup {gamma}}>21 GeV, covering the kinematic region 0.006<x{sub T}<0.086. The measured cross section is found to be in agreement with next-to-leading-order perturbative QCD calculations.

• OSTI ID: 21562062
• Journal Information: Physical Review Letters, Vol. 106, Issue 8; Other Information: DOI: 10.1103/PhysRevLett.106.082001; (c) 2011 American Institute of Physics; ISSN 0031-9007
• Country of Publication: United States
• Language: English

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