Please use this identifier to cite or link to this item: http://hdl.handle.net/2440/124374
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dc.contributor.authorAaboud, M.en
dc.contributor.authorAad, G.en
dc.contributor.authorAbbott, B.en
dc.contributor.authorAbdinov, O.en
dc.contributor.authorAbeloos, B.en
dc.contributor.authorAbhayasinghe, D.K.en
dc.contributor.authorAbidi, S.H.en
dc.contributor.authorAbouzeid, O.S.en
dc.contributor.authorAbraham, N.L.en
dc.contributor.authorAbramowicz, H.en
dc.contributor.authorAbreu, H.en
dc.contributor.authorAbulaiti, Y.en
dc.contributor.authorAcharya, B.S.en
dc.contributor.authorAdachi, S.en
dc.contributor.authorAdamczyk, L.en
dc.contributor.authorAdelman, J.en
dc.contributor.authorAdersberger, M.en
dc.contributor.authorAdiguzel, A.en
dc.contributor.authorAdye, T.en
dc.contributor.authorAffolder, A.A.en
dc.contributor.authoret al.en
dc.date.issued2018en
dc.identifier.citationPhysical Review C, 2018; 98(4):044905-1-044905-34en
dc.identifier.issn2469-9985en
dc.identifier.issn2469-9993en
dc.identifier.urihttp://hdl.handle.net/2440/124374-
dc.description.abstractATLAS measurements of the production of muons from heavy-flavor decays in √ s N N = 2.76 TeV Pb+Pb collisions and √ s = 2.76 TeV p p collisions at the LHC are presented. Integrated luminosities of 0.14 nb − 1 and 570 nb − 1 are used for the Pb+Pb and p p measurements, respectively, which are performed over the muon transverse momentum range 4 < p T < 14 GeV and for five Pb+Pb centrality intervals. Backgrounds arising from in-flight pion and kaon decays, hadronic showers, and misreconstructed muons are statistically removed using a template-fitting procedure. The heavy-flavor muon differential cross sections and per-event yields are measured in p p and Pb+Pb collisions, respectively. The nuclear modification factor R A A obtained from these is observed to be independent of p T , within uncertainties, and to be less than unity, which indicates suppressed production of heavy-flavor muons in Pb+Pb collisions. For the 10% most central Pb+Pb events, the measured R A A is approximately 0.35. The azimuthal modulation of the heavy-flavor muon yields is also measured and the associated Fourier coefficients v n for n = 2 , 3, and 4 are given as a function of p T and centrality. They vary slowly with p T and show a systematic variation with centrality which is characteristic of other anisotropy measurements, such as that observed for inclusive hadrons. The measured R A A and v n values are also compared with theoretical calculations.en
dc.description.statementofresponsibilityM. Aaboud, G. Aad, B. Abbott, O. Abdinov, B. Abeloos ... Paul D. Jackson ... Abhishek Sharma ... et al. (The ATLAS Collaboration)en
dc.language.isoenen
dc.publisherAmerican Physical Societyen
dc.rights©2018 CERN, for the ATLAS Collaboration. ATLAS measurements of the production of muons from heavy-flavor decays in √ s N N = 2.76 TeV Pb+Pb collisions and √ s = 2.76 TeV p p collisions at the LHC are presented. Integrated luminosities of 0.14 nb − 1 and 570 nb − 1 are used for the Pb+Pb and p p measurements, respectively, which are performed over the muon transverse momentum range 4 < p T < 14 GeV and for five Pb+Pb centrality intervals. Backgrounds arising from in-flight pion and kaon decays, hadronic showers, and misreconstructed muons are statistically removed using a template-fitting procedure. The heavy-flavor muon differential cross sections and per-event yields are measured in p p and Pb+Pb collisions, respectively. The nuclear modification factor R A A obtained from these is observed to be independent of p T , within uncertainties, and to be less than unity, which indicates suppressed production of heavy-flavor muons in Pb+Pb collisions. For the 10% most central Pb+Pb events, the measured R A A is approximately 0.35. The azimuthal modulation of the heavy-flavor muon yields is also measured and the associated Fourier coefficients v n for n = 2 , 3, and 4 are given as a function of p T and centrality. They vary slowly with p T and show a systematic variation with centrality which is characteristic of other anisotropy measurements, such as that observed for inclusive hadrons. The measured R A A and v n values are also compared with theoretical calculations.en
dc.titleMeasurement of the suppression and azimuthal anisotropy of muons from heavy-flavor decays in Pb+Pb collisions at √sNN =2.76 TeV with the ATLAS detectoren
dc.title.alternativeMeasurement of the suppression and azimuthal anisotropy of muons from heavy-flavor decays in Pb+Pb collisions at root sNN =2.76 TeV with the ATLAS detectoren
dc.typeJournal articleen
dc.identifier.rmid0030101918en
dc.identifier.doi10.1103/PhysRevC.98.044905en
dc.identifier.pubid421858-
pubs.library.collectionPhysics publicationsen
pubs.library.teamDS10en
pubs.verification-statusVerifieden
pubs.publication-statusPublisheden
Appears in Collections:Physics publications

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