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dc.contributor.authorALICE collaboration
dc.date.accessioned2024-05-24T09:21:48Z
dc.date.available2024-05-24T09:21:48Z
dc.date.issued2024
dc.identifier.citationALICE collaboration. (2024). ψ(2S) suppression in Pb-Pb collisions at the LHC. <i>Physical Review Letters</i>, <i>132</i>, Article 042301. <a href="https://doi.org/10.1103/PhysRevLett.132.042301" target="_blank">https://doi.org/10.1103/PhysRevLett.132.042301</a>
dc.identifier.otherCONVID_213600662
dc.identifier.urihttps://jyx.jyu.fi/handle/123456789/95157
dc.description.abstractThe production of the ψ(2S) charmonium state was measured with ALICE in Pb-Pb collisions at √sNN=5.02 TeV, in the dimuon decay channel. A significant signal was observed for the first time at LHC energies down to zero transverse momentum, at forward rapidity (2.5<4). The measurement of the ratio of the inclusive production cross sections of the ψ(2S) and J/ψ resonances is reported as a function of the centrality of the collisions and of transverse momentum, in the region pT<12 GeV/c. The results are compared with the corresponding measurements in pp collisions, by forming the double ratio [σψ(2S)/σJ/ψ]Pb−Pb/[σψ(2S)/σJ/ψ]pp. It is found that in Pb-Pb collisions the ψ(2S) is suppressed by a factor of ∼2 with respect to the J/ψ. The ψ(2S) nuclear modification factor RAA was also obtained as a function of both centrality and pT. The results show that the ψ(2S) resonance yield is strongly suppressed in Pb-Pb collisions, by a factor up to ∼3 with respect to pp. Comparisons of cross section ratios with previous SPS findings by the NA50 experiment and of RAA with higher-pT results at LHC energy are also reported. These results and the corresponding comparisons with calculations of transport and statistical models address questions on the presence and properties of charmonium states in the quark-gluon plasma formed in nuclear collisions at the LHC.en
dc.format.mimetypeapplication/pdf
dc.language.isoeng
dc.publisherAmerican Physical Society (APS)
dc.relation.ispartofseriesPhysical Review Letters
dc.rightsCC BY 4.0
dc.subject.othercolor confinement
dc.subject.otherrelativistic heavy-ion collisions
dc.subject.otherquarkonia
dc.titleψ(2S) suppression in Pb-Pb collisions at the LHC
dc.typeresearch article
dc.identifier.urnURN:NBN:fi:jyu-202405243921
dc.contributor.laitosFysiikan laitosfi
dc.contributor.laitosDepartment of Physicsen
dc.type.urihttp://purl.org/eprint/type/JournalArticle
dc.type.coarhttp://purl.org/coar/resource_type/c_2df8fbb1
dc.description.reviewstatuspeerReviewed
dc.relation.issn0031-9007
dc.relation.volume132
dc.type.versionpublishedVersion
dc.rights.copyright© 2024 CERN
dc.rights.accesslevelopenAccessfi
dc.type.publicationarticle
dc.relation.grantnumber346328
dc.relation.grantnumber824093
dc.relation.grantnumber824093
dc.relation.grantnumber346327
dc.relation.projectidinfo:eu-repo/grantAgreement/EC/H2020/824093/EU//STRONG-2020
dc.subject.ysohiukkasfysiikka
dc.subject.ysoydinfysiikka
dc.format.contentfulltext
jyx.subject.urihttp://www.yso.fi/onto/yso/p15576
jyx.subject.urihttp://www.yso.fi/onto/yso/p14759
dc.rights.urlhttps://creativecommons.org/licenses/by/4.0/
dc.relation.doi10.1103/PhysRevLett.132.042301
dc.relation.funderResearch Council of Finlanden
dc.relation.funderEuropean Commissionen
dc.relation.funderResearch Council of Finlanden
dc.relation.funderSuomen Akatemiafi
dc.relation.funderEuroopan komissiofi
dc.relation.funderSuomen Akatemiafi
jyx.fundingprogramCentre of Excellence, AoFen
jyx.fundingprogramRIA Research and Innovation Action, H2020en
jyx.fundingprogramCentre of Excellence, AoFen
jyx.fundingprogramHuippuyksikkörahoitus, SAfi
jyx.fundingprogramRIA Research and Innovation Action, H2020fi
jyx.fundingprogramHuippuyksikkörahoitus, SAfi
jyx.fundinginformationIn addition, individual groups or members have received support from: Marie Skłodowska Curie, European Research Council, Strong 2020—Horizon 2020 (Grants No. 950692, No. 824093, and No. 896850), European Union; Academy of Finland (Center of Excellence in Quark Matter) (Grants No. 346327 and No. 346328), Finland; and Programa de Apoyos para la Superación del Personal Acad´emico, UNAM, Mexico
dc.type.okmA1


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