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Measurement of quarkonium production in proton–lead and proton–proton collisions at $5.02~\mathrm {TeV}$ with the ATLAS detector

2018-02-28Journal article Open access
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dc.contributor.authorATLAS collaboration (2839 authors)
dc.contributor.authorAguilar-Saavedra, Juan Antonio
dc.contributor.authorAmor Dos Santos, Susana Patricia
dc.contributor.authorAnjos, Nuno
dc.contributor.authorAraque, Juan Pedro
dc.contributor.authorCarvalho, João
dc.contributor.authorCastro, Nuno Filipe
dc.contributor.authorConde Muiño, Patricia
dc.contributor.authorDa Cunha Sargedas De Sousa, Mario Jose
dc.contributor.authorFiolhais, Miguel
dc.contributor.authorGalhardo, Bruno
dc.contributor.authorGomes, Agostinho
dc.contributor.authorGonçalo, Ricardo
dc.contributor.authorJorge, Pedro
dc.contributor.authorMachado Miguens, Joana
dc.contributor.authorMaio, Amélia
dc.contributor.authorManeira, José
dc.contributor.authorOleiro Seabra, Luis Filipe
dc.contributor.authorOnofre, António
dc.contributor.authorPedro, Rute
dc.contributor.authorSantos, Helena
dc.contributor.authorSaraiva, João
dc.contributor.authorSilva, José
dc.contributor.authorTavares Delgado, Ademar
dc.contributor.authorVeloso, Filipe
dc.contributor.authorWolters, Helmut
dc.date.accessioned2019-02-04T13:58:47Z
dc.date.available2019-02-04T13:58:47Z
dc.date.issued2018-02-28
dc.date.updated2019-02-04T13:58:47Z
dc.description.abstractThe modification of the production of $J/\psi $ , $\psi (2\mathrm {S})$ , and $\varUpsilon (n\mathrm {S})$ ( $n = 1, 2, 3$ ) in p+Pb collisions with respect to their production in pp collisions has been studied. The p+Pb and pp datasets used in this paper correspond to integrated luminosities of $28~\mathrm {nb}^{-1}$ and $25~\mathrm {pb}^{-1}$ respectively, collected in 2013 and 2015 by the ATLAS detector at the LHC, both at a centre-of-mass energy per nucleon pair of 5.02 TeV. The quarkonium states are reconstructed in the dimuon decay channel. The yields of $J/\psi $ and $\psi (\mathrm {2S})$ are separated into prompt and non-prompt sources. The measured quarkonium differential cross sections are presented as a function of rapidity and transverse momentum, as is the nuclear modification factor, $R_{p\mathrm {Pb}}$ for $J/\psi $ and $\varUpsilon (n\mathrm {S})$ . No significant modification of the $J/\psi $ production is observed while $\varUpsilon (n\mathrm {S})$ production is found to be suppressed at low transverse momentum in p+Pb collisions relative to pp collisions. The production of excited charmonium and bottomonium states is found to be suppressed relative to that of the ground states in central p+Pb collisions.
dc.description.versionPeer Reviewed
dc.identifierEur.Phys.J. C78 (2018) 171; DOI 10.1140/epjc/s10052-018-5624-4
dc.identifier.urihttp://dx.doi.org/10.1140/epjc/s10052-018-5624-4
dc.identifier.urihttp://hdl.handle.net/10400.26/27437
dc.language.isoeng
dc.relationEuropean Medical Information Framework
dc.titleMeasurement of quarkonium production in proton–lead and proton–proton collisions at $5.02~\mathrm {TeV}$ with the ATLAS detector
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleEuropean Medical Information Framework
oaire.awardURIinfo:eu-repo/grantAgreement/EC/FP7/115372/EU
oaire.fundingStreamFP7
project.funder.identifierhttp://doi.org/10.13039/501100008530
project.funder.nameEuropean Commission
rcaap.rightsopenAccesspt
rcaap.typearticle
relation.isProjectOfPublicationfed07931-72d2-4894-a884-7e786d93cb42
relation.isProjectOfPublication.latestForDiscoveryfed07931-72d2-4894-a884-7e786d93cb42

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