Observation of the chi(b1)(3P) and chi(b2)(3P) and Measurement of their Masses

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dc.contributor University of Helsinki, Department of Physics en
dc.contributor University of Helsinki, Department of Physics en
dc.contributor University of Helsinki, Department of Physics en
dc.contributor University of Helsinki, Department of Physics en
dc.contributor University of Helsinki, Helsinki Institute of Physics en
dc.contributor University of Helsinki, Helsinki Institute of Physics en
dc.contributor University of Helsinki, Helsinki Institute of Physics en
dc.contributor University of Helsinki, Helsinki Institute of Physics en
dc.contributor University of Helsinki, Helsinki Institute of Physics en
dc.contributor University of Helsinki, Helsinki Institute of Physics en
dc.contributor University of Helsinki, Helsinki Institute of Physics en
dc.contributor University of Helsinki, Helsinki Institute of Physics en
dc.contributor University of Helsinki, Helsinki Institute of Physics en
dc.contributor University of Helsinki, Helsinki Institute of Physics en
dc.contributor University of Helsinki, Helsinki Institute of Physics en
dc.contributor University of Helsinki, Helsinki Institute of Physics en
dc.contributor University of Helsinki, Helsinki Institute of Physics en
dc.contributor University of Helsinki, Helsinki Institute of Physics en
dc.contributor University of Helsinki, Helsinki Institute of Physics en
dc.contributor.author The CMS collaboration
dc.contributor.author Sirunyan, A. M.
dc.contributor.author Eerola, P.
dc.contributor.author Kirschenmann, H.
dc.contributor.author Pekkanen, J.
dc.contributor.author Voutilainen, M.
dc.contributor.author Havukainen, J.
dc.contributor.author Heikkilä, J. K.
dc.contributor.author Järvinen, T.
dc.contributor.author Karimäki, V.
dc.contributor.author Kinnunen, R.
dc.contributor.author Lampén, T.
dc.contributor.author Lassila-Perini, K.
dc.contributor.author Laurila, S.
dc.contributor.author Lehti, S.
dc.contributor.author Lindén, T.
dc.contributor.author Luukka, P.
dc.contributor.author Mäenpää, T.
dc.contributor.author Siikonen, H.
dc.contributor.author Tuominen, E.
dc.contributor.author Tuominiemi, J.
dc.contributor.author Tuuva, T.
dc.date.accessioned 2018-09-20T08:00:01Z
dc.date.available 2018-09-20T08:00:01Z
dc.date.issued 2018-08-29
dc.identifier.citation The CMS Collaboration , Sirunyan , A M , Eerola , P , Kirschenmann , H , Pekkanen , J , Voutilainen , M , Havukainen , J , Heikkilä , J K , Järvinen , T , Karimäki , V , Kinnunen , R , Lampén , T , Lassila-Perini , K , Laurila , S , Lehti , S , Lindén , T , Luukka , P , Mäenpää , T , Siikonen , H , Tuominen , E , Tuominiemi , J & Tuuva , T 2018 , ' Observation of the chi(b1)(3P) and chi(b2)(3P) and Measurement of their Masses ' , Physical Review Letters , vol. 121 , no. 9 , 092002 . https://doi.org/10.1103/PhysRevLett.121.092002 en
dc.identifier.issn 0031-9007
dc.identifier.other PURE: 115662127
dc.identifier.other PURE UUID: 4ca3422c-821a-4eb2-801b-7bef40b00c0d
dc.identifier.other Bibtex: urn:a098cefa53701ace5fb0a56db9301558
dc.identifier.other WOS: 000443098800003
dc.identifier.other Scopus: 85053284118
dc.identifier.other ORCID: /0000-0001-7507-8636/work/48613072
dc.identifier.other ORCID: /0000-0003-2039-5874/work/48613136
dc.identifier.other ORCID: /0000-0003-2898-6900/work/48613241
dc.identifier.other ORCID: /0000-0002-5200-6477/work/61593132
dc.identifier.other ORCID: /0000-0001-7369-2536/work/61901584
dc.identifier.other ORCID: /0000-0002-7073-7767/work/61592245
dc.identifier.other ORCID: /0000-0002-0538-1469/work/68618156
dc.identifier.uri http://hdl.handle.net/10138/243766
dc.description.abstract The chi(b1)(3P) and chi(b2)(3P) states are observed through their gamma(3S)(gamma) decays, using an event sample of proton-proton collisions collected by the CMS experiment at the CERN LHC. The data were collected at a center-of-mass energy of 13 TeV and correspond to an integrated luminosity of 80.0 fb(-1). The gamma(3S) mesons are identified through their dimuon decay channel, while the low-energy photons are detected after converting to e(+)e(-) pairs in the silicon tracker, leading to a chi(b)(3P) mass resolution of 2.2 MeV. This is the first time that the J = 1 and 2 states are well resolved and their masses individually measured: 10513.42 +/- 0.41(stat) +/- 0.18(syst) MeV and 10524.02 +/- 0.57(stat) +/- 0.18(syst) MeV; they are determined with respect to the world-average value of gamma(3S) mass, which has an uncertainty of 0.5 MeV. The mass splitting is measured to be 10.60 +/- 0.64(stat) +/- 0.17(syst) MeV. en
dc.format.extent 17
dc.language.iso eng
dc.relation.ispartof Physical Review Letters
dc.rights en
dc.subject 114 Physical sciences en
dc.subject HEAVY QUARKONIUM en
dc.subject BOTTOMONIUM SPECTRUM en
dc.subject QCD en
dc.title Observation of the chi(b1)(3P) and chi(b2)(3P) and Measurement of their Masses en
dc.type Article
dc.description.version Peer reviewed
dc.identifier.doi https://doi.org/10.1103/PhysRevLett.121.092002
dc.type.uri info:eu-repo/semantics/other
dc.type.uri info:eu-repo/semantics/publishedVersion
dc.contributor.pbl
dc.contributor.pbl

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