dc.contributor.author | ALICE Collaboration | |
dc.date.accessioned | 2015-11-24T07:21:26Z | |
dc.date.available | 2015-11-24T07:21:26Z | |
dc.date.issued | 2015 | |
dc.identifier.citation | ALICE Collaboration. (2015). Coherent ψ(2S) photo-production in ultra-peripheral Pb-Pb collisions at √sNN=2.76 TeV. <i>Physics Letters B</i>, <i>751</i>, 358-370. <a href="https://doi.org/10.1016/j.physletb.2015.10.040" target="_blank">https://doi.org/10.1016/j.physletb.2015.10.040</a> | |
dc.identifier.other | CONVID_25306713 | |
dc.identifier.uri | https://jyx.jyu.fi/handle/123456789/47791 | |
dc.description.abstract | We 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.iso | eng | |
dc.publisher | Elsevier B.V. | |
dc.relation.ispartofseries | Physics Letters B | |
dc.subject.other | J/psi mesons | |
dc.title | Coherent ψ(2S) photo-production in ultra-peripheral Pb-Pb collisions at √sNN=2.76 TeV | |
dc.type | research article | |
dc.identifier.urn | URN:NBN:fi:jyu-201511233768 | |
dc.contributor.laitos | Fysiikan laitos | fi |
dc.contributor.laitos | Department of Physics | en |
dc.type.uri | http://purl.org/eprint/type/JournalArticle | |
dc.date.updated | 2015-11-23T13:15:02Z | |
dc.type.coar | http://purl.org/coar/resource_type/c_2df8fbb1 | |
dc.description.reviewstatus | peerReviewed | |
dc.format.pagerange | 358-370 | |
dc.relation.issn | 0370-2693 | |
dc.relation.numberinseries | 0 | |
dc.relation.volume | 751 | |
dc.type.version | publishedVersion | |
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.accesslevel | openAccess | fi |
dc.type.publication | article | |
dc.rights.url | http://creativecommons.org/licenses/by/4.0/ | |
dc.relation.doi | 10.1016/j.physletb.2015.10.040 | |
dc.type.okm | A1 | |