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...
Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , |
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Format: | Journal article |
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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 |
format | Journal article |
id | oxford-uuid:2d08d7f5-0e23-40a2-a39b-988aabc30da0 |
institution | University of Oxford |
last_indexed | 2024-03-06T20:18:39Z |
publishDate | 2012 |
record_format | dspace |
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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