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Observation of ϒ(4S)→η
Guido, E; Mussa, R; Tamponi, U; Aihara, H; Al Said, S; Asner, D M; Atmacan, H; Aulchenko, V; Aushev, T; Ayad, R; Babu, V; Badhrees, I; Bakich, A M; Bansal, V; Behera, P; Berger, M; Bhardwaj, V; Biswal, J; Bondar, A; Bonvicini, G; Bozek, A; Bracko, M; Browder, T E; Cervenkov, D; Chekelian, V; Chen, A; Cheon, B G; Chilikin, K; Cho, K; Choi, S-K; Choi, Y; Choudhury, S; Cinabro, D; Cunliffe, S; Di Carlo, S; Dolezal, Z; Eidelman, S; Epifanov, D; Fast, J E; Ferber, T; Fulsom, B G; Garg, R; Gaur, V; Gabyshev, N; Garmash, A; Gelb, M; Giri, A; Goldenzweig, P; Haba, J; Hara, T.
Afiliación
  • Guido E; INFN-Sezione di Torino, 10125 Torino.
  • Mussa R; INFN-Sezione di Torino, 10125 Torino.
  • Tamponi U; INFN-Sezione di Torino, 10125 Torino.
  • Aihara H; University of Torino, 10124 Torino.
  • Al Said S; Department of Physics, University of Tokyo, Tokyo 113-0033.
  • Asner DM; Department of Physics, Faculty of Science, King Abdulaziz University, Jeddah 21589.
  • Atmacan H; Department of Physics, Faculty of Science, University of Tabuk, Tabuk 71451.
  • Aulchenko V; Pacific Northwest National Laboratory, Richland, Washington 99352.
  • Aushev T; University of South Carolina, Columbia, South Carolina 29208.
  • Ayad R; Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090.
  • Babu V; Novosibirsk State University, Novosibirsk 630090.
  • Badhrees I; Moscow Institute of Physics and Technology, Moscow Region 141700.
  • Bakich AM; Department of Physics, Faculty of Science, University of Tabuk, Tabuk 71451.
  • Bansal V; Tata Institute of Fundamental Research, Mumbai 400005.
  • Behera P; King Abdulaziz City for Science and Technology, Riyadh 11442.
  • Berger M; Department of Physics, Faculty of Science, University of Tabuk, Tabuk 71451.
  • Bhardwaj V; School of Physics, University of Sydney, New South Wales 2006.
  • Biswal J; Pacific Northwest National Laboratory, Richland, Washington 99352.
  • Bondar A; Indian Institute of Technology Madras, Chennai 600036.
  • Bonvicini G; Stefan Meyer Institute for Subatomic Physics, Vienna 1090.
  • Bozek A; Indian Institute of Science Education and Research Mohali, SAS Nagar, 140306.
  • Bracko M; J. Stefan Institute, 1000 Ljubljana.
  • Browder TE; Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090.
  • Cervenkov D; Novosibirsk State University, Novosibirsk 630090.
  • Chekelian V; Wayne State University, Detroit, Michigan 48202.
  • Chen A; H. Niewodniczanski Institute of Nuclear Physics, Krakow 31-342.
  • Cheon BG; J. Stefan Institute, 1000 Ljubljana.
  • Chilikin K; University of Maribor, 2000 Maribor.
  • Cho K; University of Hawaii, Honolulu, Hawaii 96822.
  • Choi SK; Faculty of Mathematics and Physics, Charles University, 121 16 Prague.
  • Choi Y; Max-Planck-Institut für Physik, 80805 München.
  • Choudhury S; National Central University, Chung-li 32054.
  • Cinabro D; Hanyang University, Seoul 133-791.
  • Cunliffe S; P. N. Lebedev Physical Institute of the Russian Academy of Sciences, Moscow 119991.
  • Di Carlo S; Moscow Physical Engineering Institute, Moscow 115409.
  • Dolezal Z; Korea Institute of Science and Technology Information, Daejeon 305-806.
  • Eidelman S; Gyeongsang National University, Chinju 660-701.
  • Epifanov D; Sungkyunkwan University, Suwon 440-746.
  • Fast JE; Indian Institute of Technology Hyderabad, Telangana 502285.
  • Ferber T; Wayne State University, Detroit, Michigan 48202.
  • Fulsom BG; Pacific Northwest National Laboratory, Richland, Washington 99352.
  • Garg R; Wayne State University, Detroit, Michigan 48202.
  • Gaur V; Faculty of Mathematics and Physics, Charles University, 121 16 Prague.
  • Gabyshev N; Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090.
  • Garmash A; Novosibirsk State University, Novosibirsk 630090.
  • Gelb M; Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090.
  • Giri A; Novosibirsk State University, Novosibirsk 630090.
  • Goldenzweig P; Pacific Northwest National Laboratory, Richland, Washington 99352.
  • Haba J; Deutsches Elektronen-Synchrotron, 22607 Hamburg.
  • Hara T; Pacific Northwest National Laboratory, Richland, Washington 99352.
Phys Rev Lett ; 121(6): 062001, 2018 Aug 10.
Article en En | MEDLINE | ID: mdl-30141661
ABSTRACT
We report the first observation of the hadronic transition ϒ(4S)→η^{'}ϒ(1S), using 496 fb^{-1} data collected at the ϒ(4S) resonance with the Belle detector at the KEKB asymmetric-energy e^{+}e^{-} collider. We reconstruct the η^{'} meson through its decays to ρ^{0}γ and to π^{+}π^{-}η, with η→γγ. We measure B(ϒ(4S)→η^{'}ϒ(1S))=[3.43±0.88(stat)±0.21(syst)]×10^{-5}, with a significance of 5.7σ.
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Texto completo: 1 Banco de datos: MEDLINE Idioma: En Año: 2018 Tipo del documento: Article
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Texto completo: 1 Banco de datos: MEDLINE Idioma: En Año: 2018 Tipo del documento: Article