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Measurement of isolated photon production in $pp$ and PbPb collisions at $\sqrt{s_{NN}}=2.76$ TeV

2013-07-16Journal article Open access
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dc.contributor.authorCMS collaboration (2266 authors)
dc.contributor.authorHollar, Jonathan
dc.contributor.authorAlmeida, Nuno
dc.contributor.authorBargassa, Pedrame
dc.contributor.authorDavid Tinoco Mendes, Andre
dc.contributor.authorFaccioli, Pietro
dc.contributor.authorFerreira Parracho, Pedro Guilherme
dc.contributor.authorGallinaro, Michele
dc.contributor.authorMusella, Pasquale
dc.contributor.authorNayak, Aruna
dc.contributor.authorPela, Joao
dc.contributor.authorRibeiro, Pedro Quinaz
dc.contributor.authorSeixas, Joao
dc.contributor.authorVarela, Joao
dc.contributor.authorVischia, Pietro
dc.contributor.authorLloret Iglesias, Lara
dc.contributor.authorRodrigues Antunes, Joao
dc.contributor.authorSilva, Pedro
dc.contributor.authorLeonardo, Nuno
dc.date.accessioned2019-02-05T17:13:22Z
dc.date.available2019-02-05T17:13:22Z
dc.date.issued2013-07-16
dc.date.updated2019-02-05T17:13:22Z
dc.description.abstractIsolated 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 |eta|<1.44 and transverse energies ET between 20 and 80 GeV with the CMS detector at the LHC. The measured ET spectra are found to be in good agreement with next-to-leading-order perturbative QCD predictions. The ratio of PbPb to pp isolated photon ET-differential yields, scaled by the number of incoherent nucleon-nucleon collisions, is consistent with unity for all PbPb reaction centralities.
dc.description.versionPeer Reviewed
dc.identifierPhys.Lett. B710 (2012) 256-277; DOI 10.1016/j.physletb.2012.02.077
dc.identifier.urihttp://dx.doi.org/10.1016/j.physletb.2012.02.077
dc.identifier.urihttp://hdl.handle.net/10400.26/27734
dc.language.isoeng
dc.titleMeasurement of isolated photon production in $pp$ and PbPb collisions at $\sqrt{s_{NN}}=2.76$ TeV
dc.typejournal article
dspace.entity.typePublication
rcaap.rightsopenAccesspt
rcaap.typearticle

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