Measurement of the differential cross section for isolated prompt photon production in pp collisions at 7 TeV

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dc.date.accessioned2013-09-30T19:02:13Z
dc.date.accessioned2014-05-20T14:13:43Z
dc.date.accessioned2022-10-05T15:09:15Z
dc.date.available2013-09-30T19:02:13Z
dc.date.available2014-05-20T14:13:43Z
dc.date.available2022-10-05T15:09:15Z
dc.date.created2013-09-30T19:02:13Z
dc.date.created2014-05-20T14:13:43Z
dc.date.issued2011-09-29
dc.identifierPhysical Review D. College Pk: Amer Physical Soc, v. 84, n. 5, p. 29, 2011.
dc.identifier1550-7998
dc.identifierhttp://hdl.handle.net/11449/24650
dc.identifier10.1103/PhysRevD.84.052011
dc.identifierWOS:000306432100003
dc.identifierWOS000306432100003.pdf
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/3897839
dc.description.abstractA measurement of the differential cross section for the inclusive production of isolated prompt photons in proton-proton collisions at a center-of-mass energy of 7 TeV is presented. The data sample corresponds to an integrated luminosity of 36 pb(-1) recorded by the CMS detector at the LHC. The measurement covers the pseudorapidity range vertical bar eta vertical bar < 2.5 and the transverse energy range 25 < E-T < 400 GeV, corresponding to the kinematic region 0.007 < x(T) < 0.114. Photon candidates are identified with two complementary methods, one based on photon conversions in the silicon tracker and the other on isolated energy deposits in the electromagnetic calorimeter. The measured cross section is presented as a function of E-T in four pseudorapidity regions. The next-to-leading-order perturbative QCD calculations are consistent with the measured cross section.
dc.languageeng
dc.publisherAmer Physical Soc
dc.relationPhysical Review D
dc.rightsAcesso restrito
dc.sourceWeb of Science
dc.titleMeasurement of the differential cross section for isolated prompt photon production in pp collisions at 7 TeV
dc.typeArtigo


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