2026-10-19T04:51:30Zhttps://ebyu-rdlopen.rawdatalibrary.net/oai/request

oai:ebyu-rdlopen.rawdatalibrary.net:ebyu/129872026-10-18T20:27:50Zopenairedrivercom_ebyu_10000col_ebyu_10001

Observation of Bs 0 mesons and measurement of the Bs 0/B+ yield ratio in PbPb collisions at [Formula presented] TeVTumasyan, A.Adam, W.Ambrogi, F.Bergauer, T.Dragicevic, M.Erö, J.Escalante Del Valle, A.Frühwirth, R.Jeitler, M.Krammer, N.Lechner, L.Liko, D.Madlener, T.Mikulec, I.Pitters, F.M.Rad, N.Schieck, J.Schöfbeck, R.Spanring, M.Templ, S.Waltenberger, W.Wulz, C.-E.Zarucki, M.Chekhovsky, V.Litomin, A.Makarenko, V.Suarez Gonzalez, J.Darwish, M.R.De Wolf, E.A.Di Croce, D.Janssen, X.Kello, T.Lelek, A.Pieters, M.Rejeb Sfar, H.Van Haevermaet, H.Van Mechelen, P.Van Putte, S.Van Remortel, N.Blekman, F.Bols, E.S.Chhibra, S.S.D’Hondt, J.De Clercq, J.Lontkovskyi, D.Lowette, S.Marchesini, I.Moortgat, S.Morton, A.Python, Q.B mesonsCMSHadronizationHeavy flavorQuark gluon plasmaThe Bs 0 and B+ production yields are measured in PbPb collisions at a center-of-mass energy per nucleon pair of 5.02 TeV. The data sample, collected with the CMS detector at the LHC, corresponds to an integrated luminosity of 1.7 nb−1. The mesons are reconstructed in the exclusive decay channels B→s0J/ψ(μ+μ−)ϕ(K+K−) and B→+J/ψ(μ+μ−)K+, in the transverse momentum range 7–50 GeV/c and absolute rapidity 0–2.4. The Bs 0 meson is observed with a statistical significance in excess of five standard deviations for the first time in nucleus-nucleus collisions. The measurements are performed as functions of the transverse momentum of the B mesons and of the PbPb collision centrality. The ratio of production yields of Bs 0 and B+ is measured and compared to theoretical models that include quark recombination effects. © 2022 The Author(s)Elsevier B.V.2022Articlehttps://rdlopen.rawdatalibrary.net/r/ebyu/12987https://doi.org/10.1016/j.physletb.2022.1370620370-2693enPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physicsinfo:eu-repo/semantics/openAccessinfo:eu-repo/semantics/articlehttps://ebyu-rdlopen.rawdatalibrary.net/tr/items/ebyu/12987