Measurement of isolated photon production in pp and PbPb collisions at sNN=2.76 TeV

Isolated photon production is measured in proton-proton and lead-lead collisions at nucleon-nucleon centre-of-mass energies of 2.76 TeV in the pseudorapidity range |η|<1.44 and transverse energies E T between 20 and 80 GeV with the CMS detector at the LHC. The measured E T spectra are found t...

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Main Authors: Chatrchyan, S, Khachatryan, V, Sirunyan, A, Tumasyan, A, Adam, W, Bergauer, T, Dragicevic, M, Erö, J, Fabjan, C, Friedl, M, Frühwirth, R, Ghete, V, Hammer, J, Hoch, M, Hörmann, N, Hrubec, J, Jeitler, M, Kiesenhofer, W, Knapitsch, A, Krammer, M, Liko, D, Mikulec, I, Pernicka, M, Rahbaran, B, Rohringer, C
Format: Journal article
Published: 2012
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author Chatrchyan, S
Khachatryan, V
Sirunyan, A
Tumasyan, A
Adam, W
Bergauer, T
Dragicevic, M
Erö, J
Fabjan, C
Friedl, M
Frühwirth, R
Ghete, V
Hammer, J
Hoch, M
Hörmann, N
Hrubec, J
Jeitler, M
Kiesenhofer, W
Knapitsch, A
Krammer, M
Liko, D
Mikulec, I
Pernicka, M
Rahbaran, B
Rohringer, C
author_facet Chatrchyan, S
Khachatryan, V
Sirunyan, A
Tumasyan, A
Adam, W
Bergauer, T
Dragicevic, M
Erö, J
Fabjan, C
Friedl, M
Frühwirth, R
Ghete, V
Hammer, J
Hoch, M
Hörmann, N
Hrubec, J
Jeitler, M
Kiesenhofer, W
Knapitsch, A
Krammer, M
Liko, D
Mikulec, I
Pernicka, M
Rahbaran, B
Rohringer, C
author_sort Chatrchyan, S
collection OXFORD
description Isolated photon production is measured in proton-proton and lead-lead collisions at nucleon-nucleon centre-of-mass energies of 2.76 TeV in the pseudorapidity range |η|<1.44 and transverse energies E T between 20 and 80 GeV with the CMS detector at the LHC. The measured E T spectra are found to be in good agreement with next-to-leading-order perturbative QCD predictions. The ratio of PbPb to pp isolated photon E T-differential yields, scaled by the number of incoherent nucleon-nucleon collisions, is consistent with unity for all PbPb reaction centralities. © 2012 CERN.
first_indexed 2024-03-06T20:18:39Z
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spelling oxford-uuid:2d08d7f5-0e23-40a2-a39b-988aabc30da02022-03-26T12:40:29ZMeasurement of isolated photon production in pp and PbPb collisions at sNN=2.76 TeVJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:2d08d7f5-0e23-40a2-a39b-988aabc30da0Symplectic Elements at Oxford2012Chatrchyan, SKhachatryan, VSirunyan, ATumasyan, AAdam, WBergauer, TDragicevic, MErö, JFabjan, CFriedl, MFrühwirth, RGhete, VHammer, JHoch, MHörmann, NHrubec, JJeitler, MKiesenhofer, WKnapitsch, AKrammer, MLiko, DMikulec, IPernicka, MRahbaran, BRohringer, CIsolated photon production is measured in proton-proton and lead-lead collisions at nucleon-nucleon centre-of-mass energies of 2.76 TeV in the pseudorapidity range |η|<1.44 and transverse energies E T between 20 and 80 GeV with the CMS detector at the LHC. The measured E T spectra are found to be in good agreement with next-to-leading-order perturbative QCD predictions. The ratio of PbPb to pp isolated photon E T-differential yields, scaled by the number of incoherent nucleon-nucleon collisions, is consistent with unity for all PbPb reaction centralities. © 2012 CERN.
spellingShingle Chatrchyan, S
Khachatryan, V
Sirunyan, A
Tumasyan, A
Adam, W
Bergauer, T
Dragicevic, M
Erö, J
Fabjan, C
Friedl, M
Frühwirth, R
Ghete, V
Hammer, J
Hoch, M
Hörmann, N
Hrubec, J
Jeitler, M
Kiesenhofer, W
Knapitsch, A
Krammer, M
Liko, D
Mikulec, I
Pernicka, M
Rahbaran, B
Rohringer, C
Measurement of isolated photon production in pp and PbPb collisions at sNN=2.76 TeV
title Measurement of isolated photon production in pp and PbPb collisions at sNN=2.76 TeV
title_full Measurement of isolated photon production in pp and PbPb collisions at sNN=2.76 TeV
title_fullStr Measurement of isolated photon production in pp and PbPb collisions at sNN=2.76 TeV
title_full_unstemmed Measurement of isolated photon production in pp and PbPb collisions at sNN=2.76 TeV
title_short Measurement of isolated photon production in pp and PbPb collisions at sNN=2.76 TeV
title_sort measurement of isolated photon production in pp and pbpb collisions at snn 2 76 tev
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