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Observation of Z_{b}(10610) and Z_{b}(10650) Decaying to B Mesons.
Garmash, A; Abdesselam, A; Adachi, I; Aihara, H; Asner, D M; Aushev, T; Ayad, R; Aziz, T; Babu, V; Badhrees, I; Bakich, A M; Behera, P; Bhardwaj, V; Bhuyan, B; Bobrov, A; Bondar, A; Bonvicini, G; Bozek, A; Bracko, M; Browder, T E; Cervenkov, D; Chekelian, V; Chen, A; Cheon, B G; Chilikin, K; Cho, K; Chobanova, V; Choi, Y; Cinabro, D; Dalseno, J; Danilov, M; Dash, N; Dolezal, Z; Drutskoy, A; Dutta, D; Eidelman, S; Epifanov, D; Farhat, H; Fast, J E; Ferber, T; Fulsom, B G; Gaur, V; Gabyshev, N; Gillard, R; Goh, Y M; Goldenzweig, P; Golob, B; Hara, T; Hayasaka, K; Hayashii, H.
Affiliation
  • Garmash A; Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090.
  • Abdesselam A; Novosibirsk State University, Novosibirsk 630090.
  • Adachi I; Department of Physics, Faculty of Science, University of Tabuk, Tabuk 71451.
  • Aihara H; SOKENDAI (The Graduate University for Advanced Studies), Hayama 240-0193.
  • Asner DM; High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801.
  • Aushev T; Department of Physics, University of Tokyo, Tokyo 113-0033.
  • Ayad R; Pacific Northwest National Laboratory, Richland, Washington 99352.
  • Aziz T; Moscow Institute of Physics and Technology, Moscow Region 141700.
  • Babu V; Department of Physics, Faculty of Science, University of Tabuk, Tabuk 71451.
  • Badhrees I; Tata Institute of Fundamental Research, Mumbai 400005.
  • Bakich AM; Tata Institute of Fundamental Research, Mumbai 400005.
  • Behera P; King Abdulaziz City for Science and Technology, Riyadh 11442.
  • Bhardwaj V; Department of Physics, Faculty of Science, University of Tabuk, Tabuk 71451.
  • Bhuyan B; School of Physics, University of Sydney, New South Wales 2006.
  • Bobrov A; Indian Institute of Technology Madras, Chennai 600036.
  • Bondar A; University of South Carolina, Columbia, South Carolina 29208.
  • Bonvicini G; Indian Institute of Technology Guwahati, Assam 781039.
  • Bozek A; Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090.
  • Bracko M; Novosibirsk State University, Novosibirsk 630090.
  • 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.
  • Chobanova V; Faculty of Mathematics and Physics, Charles University, 121 16 Prague.
  • Choi Y; Max-Planck-Institut für Physik, 80805 München.
  • Cinabro D; National Central University, Chung-li 32054.
  • Dalseno J; Hanyang University, Seoul 133-791.
  • Danilov M; Moscow Physical Engineering Institute, Moscow 115409.
  • Dash N; Korea Institute of Science and Technology Information, Daejeon 305-806.
  • Dolezal Z; Max-Planck-Institut für Physik, 80805 München.
  • Drutskoy A; Sungkyunkwan University, Suwon 440-746.
  • Dutta D; Wayne State University, Detroit, Michigan 48202.
  • Eidelman S; Max-Planck-Institut für Physik, 80805 München.
  • Epifanov D; Excellence Cluster Universe, Technische Universität München, 85748 Garching.
  • Farhat H; Moscow Physical Engineering Institute, Moscow 115409.
  • Fast JE; Indian Institute of Technology Bhubaneswar, Satya Nagar 751007.
  • Ferber T; Faculty of Mathematics and Physics, Charles University, 121 16 Prague.
  • Fulsom BG; Moscow Physical Engineering Institute, Moscow 115409.
  • Gaur V; Tata Institute of Fundamental Research, Mumbai 400005.
  • Gabyshev N; Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090.
  • Gillard R; Novosibirsk State University, Novosibirsk 630090.
  • Goh YM; Department of Physics, University of Tokyo, Tokyo 113-0033.
  • Goldenzweig P; Wayne State University, Detroit, Michigan 48202.
  • Golob B; Pacific Northwest National Laboratory, Richland, Washington 99352.
  • Hara T; Deutsches Elektronen-Synchrotron, 22607 Hamburg.
  • Hayasaka K; Pacific Northwest National Laboratory, Richland, Washington 99352.
  • Hayashii H; Tata Institute of Fundamental Research, Mumbai 400005.
Phys Rev Lett ; 116(21): 212001, 2016 May 27.
Article in En | MEDLINE | ID: mdl-27284649
ABSTRACT
We report the analysis of the three-body e^{+}e^{-}→BB[over ¯]π^{±}, BB[over ¯]^{*}π^{±}, and B^{*}B[over ¯]^{*}π^{±} processes, including the first observations of the Z_{b}^{±}(10610)→[BB[over ¯]^{*}+c.c.]^{±} and Z_{b}^{±}(10650)→[B^{*}B[over ¯]^{*}]^{±} transitions that are found to dominate the corresponding final states. We measure Born cross sections for the three-body production of σ(e^{+}e^{-}→[BB[over ¯]^{*}+c.c.]^{±}π^{∓})=[17.4±1.6(stat)±1.9(syst)] pb and σ(e^{+}e^{-}→[B^{*}B[over ¯]^{*}]^{±}π^{∓})=[8.75±1.15(stat)±1.04(syst)] pb and set a 90% C.L. upper limit of σ(e^{+}e^{-}→[BB[over ¯]]^{±}π^{∓})<2.9 pb. The results are based on a 121.4 fb^{-1} data sample collected with the Belle detector at a center-of-mass energy near the ϒ(10860) peak.
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Full text: 1 Collection: 01-internacional Database: MEDLINE Language: En Journal: Phys Rev Lett Year: 2016 Type: Article
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Full text: 1 Collection: 01-internacional Database: MEDLINE Language: En Journal: Phys Rev Lett Year: 2016 Type: Article