Observation of the B-s(0) -> X(3872)phi Decay

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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, 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, Lappeenranta University of Technology en
dc.contributor University of Helsinki, State University of New York at Buffalo 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, University of Illinois, Chicago en
dc.contributor.author The CMS collaboration
dc.contributor.author Sirunyan, A. M.
dc.contributor.author Tumasyan, A.
dc.contributor.author Eerola, P.
dc.contributor.author Forthomme, L.
dc.contributor.author Kirschenmann, H.
dc.contributor.author Osterberg, K.
dc.contributor.author Voutilainen, M.
dc.contributor.author Brucken, E.
dc.contributor.author Garcia, F.
dc.contributor.author Havukainen, J.
dc.contributor.author Karimäki, V.
dc.contributor.author Kim, M.
dc.contributor.author Kinnunen, R.
dc.contributor.author Lampen, T.
dc.contributor.author Lassila-Perini, K.
dc.contributor.author Laurila, S.
dc.contributor.author Lehti, S.
dc.contributor.author Linden, T.
dc.contributor.author Luukka, P.
dc.contributor.author Pekkanen, J.
dc.contributor.author Siikonen, H.
dc.contributor.author Tuominen, E.
dc.contributor.author Tuominiemi, J.
dc.contributor.author Viinikainen, J.
dc.contributor.author Tuuva, T.
dc.date.accessioned 2020-12-09T13:15:01Z
dc.date.available 2020-12-09T13:15:01Z
dc.date.issued 2020-10-07
dc.identifier.citation The CMS Collaboration , Sirunyan , A M , Tumasyan , A , Eerola , P , Forthomme , L , Kirschenmann , H , Osterberg , K , Voutilainen , M , Brucken , E , Garcia , F , Havukainen , J , Karimäki , V , Kim , M , Kinnunen , R , Lampen , T , Lassila-Perini , K , Laurila , S , Lehti , S , Linden , T , Luukka , P , Pekkanen , J , Siikonen , H , Tuominen , E , Tuominiemi , J , Viinikainen , J & Tuuva , T 2020 , ' Observation of the B-s(0) - > X(3872)phi Decay ' , Physical Review Letters , vol. 125 , no. 15 , 152001 . https://doi.org/10.1103/PhysRevLett.125.152001 en
dc.identifier.issn 0031-9007
dc.identifier.other PURE: 156821877
dc.identifier.other PURE UUID: f1ad0773-a325-43a1-a40b-26847a564c21
dc.identifier.other WOS: 000575690400002
dc.identifier.other ORCID: /0000-0002-7073-7767/work/85117158
dc.identifier.other ORCID: /0000-0003-4807-0414/work/85117860
dc.identifier.other ORCID: /0000-0002-5200-6477/work/85118228
dc.identifier.other ORCID: /0000-0001-7507-8636/work/85118653
dc.identifier.other ORCID: /0000-0003-2039-5874/work/85118756
dc.identifier.other ORCID: /0000-0002-4023-7964/work/85118880
dc.identifier.other ORCID: /0000-0003-0392-8691/work/85118978
dc.identifier.other ORCID: /0000-0001-7369-2536/work/85118983
dc.identifier.other ORCID: /0000-0003-2898-6900/work/85118989
dc.identifier.other ORCID: /0000-0003-2530-4265/work/87353087
dc.identifier.other Scopus: 85093365355
dc.identifier.uri http://hdl.handle.net/10138/322612
dc.description.abstract Using a data sample of proton-proton collisions at root s = 13 TeV, corresponding to an integrated luminosity of 140 fb(-1) collected by the CMS experiment in 2016-2018, the B-s(0) -> X(3872)phi decay is observed. Decays into J/psi pi(+)pi(-) and K+K- are used to reconstruct, respectively, the X(3872) and phi. The ratio of the product of branching fractions B[B-s(0) -> X(3872)phi]B[X(3872) -> J/psi pi(+)pi(-)] to the product B[B-s(0) ->psi(2S)phi]B[psi(2S) -> J/psi pi(+)pi(-)] is measured to be [2.21 +/- 0.29(stat) +/- 0.17(syst)]%. The ratio B[B-s(0) -> X(3872)phi]/B[B-0 -> X(3872)K-0] is found to be consistent with one, while the ratio B[B-s(0) -> X(3872)phi]/B[B+-> X(3872)K+] is two times smaller. This suggests a difference in the production dynamics of the X(3872) in B-0 and B(0)s meson decays compared to B+. The reported observation may shed new light on the nature of the X(3872) particle. en
dc.format.extent 18
dc.language.iso eng
dc.relation.ispartof Physical Review Letters
dc.rights en
dc.subject 114 Physical sciences en
dc.title Observation of the B-s(0) -> X(3872)phi Decay en
dc.type Article
dc.description.version Peer reviewed
dc.identifier.doi https://doi.org/10.1103/PhysRevLett.125.152001
dc.type.uri info:eu-repo/semantics/other
dc.type.uri info:eu-repo/semantics/publishedVersion
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