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Measurement of the Isolated Prompt Photon Production Cross Section in pp Collisions at [square root] s=7  TeV

Author(s)
Alver, Burak Han; Bendavid, Joshua L.; Busza, Wit; Butz, Erik M.; Cali, Ivan Amos; Dutta, Valentina; Everaerts, Pieter Bruno Bart; Gomez-Ceballos, Guillelmo; Goncharov, Maxim; Hahn, Kristian Allan; Harris, Philip Coleman; Klute, Markus; Lee, Yen-Jie; Ma, Teng; Nahn, Steven; Paus, Christoph M. E.; Ralph, Duncan Kelley; Stephans, George S. F.; Sung, Kevin Kai Hong; Wenger, Edward Allen; Xie, Si; Yang, Mingming; Yilmaz, Yetkin; Zanetti, Marco; Bauer, Gerry P; Kim, Y.; Loizides, Constantinos; Roland, Christof E; Chan, M.; Li, W.; Luckey Jr, P David; Roland, Gunther M; Sumorok, Konstanty C; Yoon, A. S.; ... Show more Show less
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Alternative title
Measurement of the Isolated Prompt Photon Production Cross Section in pp Collisions at √s=7  TeV
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Abstract
The differential cross section for the inclusive production of isolated prompt photons has been measured as a function of the photon transverse energy ETγ [E subscript Tau superscript gamma] in pp collisions at √s=7  [square root of 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-1 [pb superscript -1]. Photons are required to have a pseudorapidity |ηγ|<1.45 [|eta gamma| <1.45] and ETγ>21  [E subscript Tau superscript gamma >21] GeV, covering the kinematic region 0.006<xT<0.086 [0.006 < x subscript Tau < 0.086]. The measured cross section is found to be in agreement with next-to-leading-order perturbative QCD calculations.
Date issued
2011-02
URI
http://hdl.handle.net/1721.1/64823
Department
Massachusetts Institute of Technology. Department of Physics; Massachusetts Institute of Technology. Laboratory for Nuclear Science
Journal
Physical review letters
Publisher
American Physical Society
Citation
Khachatryan, V. et al. "Measurement of the Isolated Prompt Photon Production Cross Section in pp Collisions at √s=7  TeV" PRL 106, 082001 (2011) © 2011 CERN, for the CMS Collaboration
Version: Author's final manuscript
ISSN
0031-9007

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