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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.accessioned2015-11-24T07:21:26Z
dc.date.available2015-11-24T07:21:26Z
dc.date.issued2015
dc.identifier.citationALICE Collaboration. (2015). Coherent ψ(2S) photo-production in ultra-peripheral Pb-Pb collisions at √sNN=2.76 TeV. <em>Physics Letters B</em>, 751, 358-370. <a href="http://dx.doi.org/10.1016/j.physletb.2015.10.040">doi:10.1016/j.physletb.2015.10.040</a> Retrieved from <a href="http://arxiv.org/abs/1508.05076">http://arxiv.org/abs/1508.05076</a>
dc.identifier.otherTUTKAID_67857
dc.identifier.urihttps://jyx.jyu.fi/handle/123456789/47791
dc.description.abstractWe have performed the first measurement of the coherent ψ(2S) photo-production cross section in ultraperipheral Pb–Pb collisions at the LHC. This charmonium excited state is reconstructed via the ψ(2S) → l +l − and ψ(2S) → J/ψπ+π− decays, where the J/ψ decays into two leptons. The analysis is based on an event sample corresponding to an integrated luminosity of about 22 μb−1. The cross section for coherent ψ(2S) production in the rapidity interval −0.9 < y < 0.9 is dσcoh ψ(2S)/dy = 0.83±0.19 stat+syst mb. The ψ(2S) to J/ψ coherent cross section ratio is 0.34+0.08 −0.07(stat + syst). The obtained results are compared to predictions from theoretical models.
dc.language.isoeng
dc.publisherElsevier B.V.
dc.relation.ispartofseriesPhysics Letters B
dc.subject.otherJ/psi mesons
dc.titleCoherent ψ(2S) photo-production in ultra-peripheral Pb-Pb collisions at √sNN=2.76 TeV
dc.typearticle
dc.identifier.urnURN:NBN:fi:jyu-201511233768
dc.contributor.laitosFysiikan laitosfi
dc.contributor.laitosDepartment of Physicsen
dc.type.urihttp://purl.org/eprint/type/JournalArticle
dc.date.updated2015-11-23T13:15:02Z
dc.type.coarjournal article
dc.description.reviewstatuspeerReviewed
dc.format.pagerange358-370
dc.relation.issn0370-2693
dc.relation.volume751
dc.type.versionpublishedVersion
dc.rights.copyright© 2015 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.2015.10.040


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© 2015 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 © 2015 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.