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dc.contributor.authorALICE Collaboration
dc.contributor.authorChang, BeomSu
dc.contributor.authorKim, Dong Jo
dc.contributor.authorKral, Jiri
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.accessioned2016-02-24T11:01:57Z
dc.date.available2016-02-24T11:01:57Z
dc.date.issued2016
dc.identifier.citationALICE Collaboration. (2016). 3ΛH and 3Λ¯H‾ production in Pb–Pb collisions at √sNN = 2.76 TeV. <em>Physics Letters B</em>, 754, 360-372. <a href="http://dx.doi.org/10.1016/j.physletb.2016.01.040">doi:10.1016/j.physletb.2016.01.040</a>
dc.identifier.otherTUTKAID_69230
dc.identifier.urihttps://jyx.jyu.fi/handle/123456789/48920
dc.description.abstractThe production of the hypertriton nuclei 3 H and 3 ¯ H has been measured for the first time in Pb–Pb collisions at √sNN = 2.76 TeV with the ALICE experiment at LHC. The pT-integrated 3 H yield in one unity of rapidity, dN/dy × B.R. 3 H→3He,π− = (3.86 ± 0.77(stat.) ± 0.68(syst.)) × 10−5 in the 0–10% most central collisions, is consistent with the predictions from a statistical thermal model using the same temperature as for the light hadrons. The coalescence parameter B3 shows a dependence on the transverse momentum, similar to the B2 of deuterons and the B3 of 3He nuclei. The ratio of yields S3 = 3 H/(3He×/p) was measured to be S3 = 0.60±0.13(stat.)±0.21(syst.) in 0–10% centrality events; this value is compared to different theoretical models. The measured S3 is compatible with thermal model predictions. The measured 3 H lifetime, τ = 181+54 −39(stat.) ± 33(syst.) ps is in agreement within 1σ with the world average value.
dc.language.isoeng
dc.publisherElsevier B.V.
dc.relation.ispartofseriesPhysics Letters B
dc.subject.otherALICE experiment
dc.subject.otherhypertritons
dc.subject.otherLHC
dc.subject.otherPb–Pb collisions
dc.title3ΛH and 3Λ¯H‾ production in Pb–Pb collisions at √sNN = 2.76 TeV
dc.typearticle
dc.identifier.urnURN:NBN:fi:jyu-201602241675
dc.contributor.laitosFysiikan laitosfi
dc.contributor.laitosDepartment of Physicsen
dc.type.urihttp://purl.org/eprint/type/JournalArticle
dc.date.updated2016-02-24T10:15:05Z
dc.type.coarjournal article
dc.description.reviewstatuspeerReviewed
dc.format.pagerange360-372
dc.relation.issn0370-2693
dc.relation.volume754
dc.type.versionpublishedVersion
dc.rights.copyright© 2016 CERN for the benefit of the ALICE Collaboration. Published by Elsevier B.V. This is an open access article under the CC BY license. Funded by SCOAP3.
dc.rights.accesslevelopenAccessfi
dc.rights.urlhttp://creativecommons.org/licenses/by/4.0/
dc.relation.doi10.1016/j.physletb.2016.01.040


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© 2016 CERN for the benefit of the ALICE Collaboration. Published by Elsevier B.V. This is an open access article under the CC BY license. Funded by SCOAP3.
Except where otherwise noted, this item's license is described as © 2016 CERN for the benefit of the ALICE Collaboration. Published by Elsevier B.V. This is an open access article under the CC BY license. Funded by SCOAP3.