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dc.contributor.authorALICE Collaboration
dc.contributor.authorChang, BeomSu
dc.contributor.authorKim, Dong Jo
dc.contributor.authorRak, Jan
dc.contributor.authorRäsänen, Sami
dc.contributor.authorSlupecki, Maciej
dc.contributor.authorSnellman, Tomas
dc.contributor.authorTrzaska, Wladyslaw
dc.contributor.authorVargyas, Márton
dc.contributor.authorViinikainen, Jussi
dc.date.accessioned2017-08-09T07:26:23Z
dc.date.available2017-08-09T07:26:23Z
dc.date.issued2017
dc.identifier.citationALICE Collaboration. (2017). Measurement of electrons from beauty-hadron decays in p-Pb collisions at √sNN = 5.02 TeV and Pb-Pb collisions at √sNN = 2.76 TeV. <em>The Journal of High Energy Physics</em>, 2017 (7), 52. <a href="https://doi.org/10.1007/JHEP07(2017)052">doi:10.1007/JHEP07(2017)052</a>
dc.identifier.otherTUTKAID_74440
dc.identifier.urihttps://jyx.jyu.fi/handle/123456789/55045
dc.description.abstractThe production of beauty hadrons was measured via semi-leptonic decays at mid-rapidity with the ALICE detector at the LHC in the transverse momentum interval 1<pT< 8 GeV/c in minimum-bias p-Pb collisions at √sNN=5.02 TeV and in 1.3 < pT< 8 GeV/c in the 20% most central Pb-Pb collisions at √sNN=2.76 TeV. The pp reference spectra at √sNN=5.02 TeV and √s=2.76 TeV, needed for the calculation of the nuclear modification factors RpPb and RPbPb, were obtained by a pQCD-driven scaling of the cross section of electrons from beauty-hadron decays measured at √s=7 TeV. In the pT interval 3 < pT< 8 GeV/c, a suppression of the yield of electrons from beauty-hadron decays is observed in Pb-Pb compared to pp collisions. Towards lower pT, the RPbPb values increase with large systematic uncertainties. The RpPb is consistent with unity within systematic uncertainties and is well described by theoretical calculations that include cold nuclear matter effects in p-Pb collisions. The measured RpPb and these calculations indicate that cold nuclear matter effects are small at high transverse momentum also in Pb-Pb collisions. Therefore, the observed reduction of RPbPb below unity at high pT may be ascribed to an effect of the hot and dense medium formed in Pb-Pb collisions.
dc.language.isoeng
dc.publisherSpringer
dc.relation.ispartofseriesThe Journal of High Energy Physics
dc.subject.otherhiukkasfysiikka
dc.subject.otherheavy ion experiments
dc.titleMeasurement of electrons from beauty-hadron decays in p-Pb collisions at √sNN = 5.02 TeV and Pb-Pb collisions at √sNN = 2.76 TeV
dc.typearticle
dc.identifier.urnURN:NBN:fi:jyu-201707203341
dc.contributor.laitosFysiikan laitosfi
dc.contributor.laitosDepartment of Physicsen
dc.contributor.oppiaineFysiikka
dc.type.urihttp://purl.org/eprint/type/JournalArticle
dc.date.updated2017-07-20T12:15:25Z
dc.type.coarjournal article
dc.description.reviewstatuspeerReviewed
dc.relation.issn1126-6708
dc.relation.volume2017
dc.type.versionpublishedVersion
dc.rights.copyright© The Author(s) 2017. Funded by SCOAP3. This is an open access article distributed under the terms of the Creative Commons Attribution License.
dc.rights.accesslevelopenAccessfi
dc.rights.urlhttps://creativecommons.org/licenses/by/4.0/
dc.relation.doi10.1007/JHEP07(2017)052


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© The Author(s) 2017. Funded by SCOAP3. This is an open access article distributed  under the terms of the Creative Commons Attribution License.
Except where otherwise noted, this item's license is described as © The Author(s) 2017. Funded by SCOAP3. This is an open access article distributed under the terms of the Creative Commons Attribution License.