Please use this identifier to cite or link to this item: https://hdl.handle.net/11147/4991
Title: Measurement of the differential cross section for isolated prompt photon production in pp collisions at 7 TeV
Authors: CMS Collaboration
Demir, Durmuş Ali
Demir, Durmuş Ali
Izmir Institute of Technology. Physics
Keywords: Quantum Chromodynamics (QCD)
Photons
High energy physics
Large Hadron Collider (LHC)
Issue Date: Sep-2011
Publisher: American Physical Society
Source: Chatrchyan, S, Khachatryan, V., Sirunyan, A.M., Tumasyan, A., Adam, W., Bergauer, T., Dragicevic, M.,...CMS Collaboration (2011). Measurement of the differential cross section for isolated prompt photon production in pp collisions at 7 TeV. Physical Review D - Particles, Fields, Gravitation and Cosmology, 84(5). doi:10.1103/PhysRevD.84.052011
Abstract: A 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.
URI: http://doi.org/10.1103/PhysRevD.84.052011
http://hdl.handle.net/11147/4991
ISSN: 1550-7998
1550-2368
Appears in Collections:Physics / Fizik
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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