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Title

Measurement of the Isolated Prompt Photon Production Cross Section in pp Collisions at √s=7  TeV

AuthorsKhachatryan, V.; Brochero Cifuentes, J. A. ; Cabrillo, I. J. ; Calderon, Alicia ; Chamizo Llatas, M.; Chuang, S. H. ; Duarte Campderros, J. ; Felcini, Marta ; Fernández, M. ; Gómez, G. ; González Sánchez, J. ; Jorda, C. ; Lobelle Pardo, P. ; López Virto, A. ; Marco, Jesús ; Marco, Rafael ; Martínez-Rivero, Celso ; Martínez-Rivero, Celso ; Matorras, Francisco ; Muñoz Sánchez, F. J. ; Piedra, Jonatan ; Rodrigo, Teresa ; Ruiz Jimeno, Alberto ; Scodellaro, Luca ; Sobron Sañudo, M. ; Vila, Iván ; Vilar, Rocío
Issue Date2011
PublisherAmerican Physical Society
CitationPhysical Review Letters 106(8): 082001 (2011)
AbstractThe differential cross section for the inclusive production of isolated prompt photons has been measured as a function of the photon transverse energy ETγ in pp collisions at √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. Photons are required to have a pseudorapidity |ηγ|<1.45 and ETγ>21  GeV, covering the kinematic region 0.006<xT<0.086. The measured cross section is found to be in agreement with next-to-leading-order perturbative QCD calculations.
Description15 páginas, 3 figuras, 1 tabla.-- Creative Commons Attribution 3.0 License.-- PACS numbers: 13.85.Qk, 12.38.Bx.-- CMS Collaboration: et al.
Publisher version (URL)http://dx.doi.org/10.1103/PhysRevLett.106.082001
URIhttp://hdl.handle.net/10261/46265
DOI10.1103/PhysRevLett.106.082001
ISSN0031-9007
E-ISSN1079-7114
Appears in Collections:(IFCA) Artículos
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