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dc.contributor.authorALICE Collaboration
dc.date.accessioned2021-01-18T11:07:54Z
dc.date.available2021-01-18T11:07:54Z
dc.date.issued2021
dc.identifier.citationALICE Collaboration. (2021). Pion–kaon femtoscopy and the lifetime of the hadronic phase in Pb−Pb collisions at √sNN = 2.76 TeV. <i>Physics Letters B</i>, <i>813</i>, Article 136030. <a href="https://doi.org/10.1016/j.physletb.2020.136030" target="_blank">https://doi.org/10.1016/j.physletb.2020.136030</a>
dc.identifier.otherCONVID_47760423
dc.identifier.urihttps://jyx.jyu.fi/handle/123456789/73664
dc.description.abstractIn this paper, the first femtoscopic analysis of pion–kaon correlations at the LHC is reported. The analysis was performed on the Pb–Pb collision data at √sNN=2.76 TeV recorded with the ALICE detector. The non-identical particle correlations probe the spatio-temporal separation between sources of different particle species as well as the average source size of the emitting system. The sizes of the pion and kaon sources increase with centrality, and pions are emitted closer to the centre of the system and/or later than kaons. This is naturally expected in a system with strong radial flow and is qualitatively reproduced by hydrodynamic models. ALICE data on pion–kaon emission asymmetry are consistent with (3+1)-dimensional viscous hydrodynamics coupled to a statistical hadronisation model, resonance propagation, and decay code THERMINATOR 2 calculation, with an additional time delay between 1 and 2 fm/c for kaons. The delay can be interpreted as evidence for a significant hadronic rescattering phase in heavy-ion collisions at the LHC.en
dc.format.mimetypeapplication/pdf
dc.languageeng
dc.language.isoeng
dc.publisherElsevier B.V.
dc.relation.ispartofseriesPhysics Letters B
dc.relation.urihttps://doi.org/10.1016/j.physletb.2020.136030
dc.rightsCC BY 4.0
dc.titlePion–kaon femtoscopy and the lifetime of the hadronic phase in Pb−Pb collisions at √sNN = 2.76 TeV
dc.typearticle
dc.identifier.urnURN:NBN:fi:jyu-202101181138
dc.contributor.laitosFysiikan laitosfi
dc.contributor.laitosDepartment of Physicsen
dc.type.urihttp://purl.org/eprint/type/JournalArticle
dc.description.reviewstatuspeerReviewed
dc.relation.issn0370-2693
dc.relation.volume813
dc.type.versionpublishedVersion
dc.rights.copyright© 2020 The Author. Published by Elsevier B.V. Funded by SCOAP3.
dc.rights.accesslevelopenAccessfi
dc.subject.ysohiukkasfysiikka
dc.format.contentfulltext
jyx.subject.urihttp://www.yso.fi/onto/yso/p15576
dc.rights.urlhttps://creativecommons.org/licenses/by/4.0/
dc.relation.doi10.1016/j.physletb.2020.136030


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