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

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dc.date.accessioned2022-04-29T01:14:06Z
dc.date.accessioned2022-12-20T02:15:46Z
dc.date.available2022-04-29T01:14:06Z
dc.date.available2022-12-20T02:15:46Z
dc.date.created2022-04-29T01:14:06Z
dc.date.issued2011-09-29
dc.identifierPhysical Review D - Particles, Fields, Gravitation and Cosmology, v. 84, n. 5, 2011.
dc.identifier1550-7998
dc.identifier1550-2368
dc.identifierhttp://hdl.handle.net/11449/226563
dc.identifier10.1103/PhysRevD.84.052011
dc.identifier2-s2.0-80054014357
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/5406695
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 36pb-1 recorded by the CMS detector at the LHC. The measurement covers the pseudorapidity range |η|<2.5 and the transverse energy range 25<ET<400GeV, corresponding to the kinematic region 0.007<xT<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 ET in four pseudorapidity regions. The next-to-leading-order perturbative QCD calculations are consistent with the measured cross section. © 2011 CERN. Published by the American Physical Society under the terms of the Creative Commons Attribution 3.0 License. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI.
dc.languageeng
dc.relationPhysical Review D - Particles, Fields, Gravitation and Cosmology
dc.sourceScopus
dc.titleMeasurement of the differential cross section for isolated prompt photon production in pp collisions at 7 TeV
dc.typeArtículos de revistas


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