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Observation of e+e- → π+π-π(0)(χbJ) and Search for X(b) → ωϒ(1S) at sqrt[s] = 10.867 GeV.
He, X H; Shen, C P; Yuan, C Z; Ban, Y; Abdesselam, A; Adachi, I; Aihara, H; Asner, D M; Aulchenko, V; Aushev, T; Ayad, R; Bahinipati, S; Bakich, A M; Bansal, V; Bhuyan, B; Bondar, A; Bonvicini, G; Bozek, A; Bracko, M; Browder, T E; Cervenkov, D; Chang, P; Chekelian, V; Chen, A; Cheon, B G; Chilikin, K; Chistov, R; Cho, K; Chobanova, V; Choi, S-K; Choi, Y; Cinabro, D; Dalseno, J; Danilov, M; Dolezal, Z; Drásal, Z; Drutskoy, A; Eidelman, S; Farhat, H; Fast, J E; Ferber, T; Gaur, V; Gabyshev, N; Ganguly, S; Garmash, A; Gillard, R; Glattauer, R; Goh, Y M; Grzymkowska, O; Haba, J.
Afiliação
  • He XH; Peking University, Beijing 100871.
  • Shen CP; Beihang University, Beijing 100191.
  • Yuan CZ; Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049.
  • Ban Y; Peking University, Beijing 100871.
  • Abdesselam A; Department of Physics, Faculty of Science, University of Tabuk, Tabuk 71451.
  • Adachi I; The Graduate University for Advanced Studies, Hayama 240-0193 and High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801.
  • Aihara H; Department of Physics, University of Tokyo, Tokyo 113-0033.
  • Asner DM; Pacific Northwest National Laboratory, Richland, Washington 99352.
  • Aulchenko V; Budker Institute of Nuclear Physics SB RAS and Novosibirsk State University, Novosibirsk 630090.
  • Aushev T; Institute for Theoretical and Experimental Physics, Moscow 117218.
  • Ayad R; Department of Physics, Faculty of Science, University of Tabuk, Tabuk 71451.
  • Bahinipati S; Indian Institute of Technology Bhubaneswar, Satya Nagar 751007.
  • Bakich AM; School of Physics, University of Sydney, New South Wales 2006.
  • Bansal V; Pacific Northwest National Laboratory, Richland, Washington 99352.
  • Bhuyan B; Indian Institute of Technology Guwahati, Assam 781039.
  • Bondar A; Budker Institute of Nuclear Physics SB RAS and Novosibirsk State University, Novosibirsk 630090.
  • Bonvicini G; Wayne State University, Detroit, Michigan 48202.
  • Bozek A; H. Niewodniczanski Institute of Nuclear Physics, Krakow 31-342.
  • Bracko M; J. Stefan Institute, 1000 Ljubljana and University of Maribor, 2000 Maribor.
  • Browder TE; University of Hawaii, Honolulu, Hawaii 96822.
  • Cervenkov D; Faculty of Mathematics and Physics, Charles University, 121 16 Prague.
  • Chang P; Department of Physics, National Taiwan University, Taipei 10617.
  • Chekelian V; Max-Planck-Institut für Physik, 80805 München.
  • Chen A; National Central University, Chung-li 32054.
  • Cheon BG; Hanyang University, Seoul 133-791.
  • Chilikin K; Institute for Theoretical and Experimental Physics, Moscow 117218.
  • Chistov R; Institute for Theoretical and Experimental Physics, Moscow 117218.
  • Cho K; Korea Institute of Science and Technology Information, Daejeon 305-806.
  • Chobanova V; Max-Planck-Institut für Physik, 80805 München.
  • Choi SK; Gyeongsang National University, Chinju 660-701.
  • Choi Y; Sungkyunkwan University, Suwon 440-746.
  • Cinabro D; Wayne State University, Detroit, Michigan 48202.
  • Dalseno J; Max-Planck-Institut für Physik, 80805 München and Excellence Cluster Universe, Technische Universität München, 85748 Garching.
  • Danilov M; Institute for Theoretical and Experimental Physics, Moscow 117218 and Moscow Physical Engineering Institute, Moscow 115409.
  • Dolezal Z; Faculty of Mathematics and Physics, Charles University, 121 16 Prague.
  • Drásal Z; Faculty of Mathematics and Physics, Charles University, 121 16 Prague.
  • Drutskoy A; Institute for Theoretical and Experimental Physics, Moscow 117218 and Moscow Physical Engineering Institute, Moscow 115409.
  • Eidelman S; Budker Institute of Nuclear Physics SB RAS and Novosibirsk State University, Novosibirsk 630090.
  • Farhat H; Wayne State University, Detroit, Michigan 48202.
  • Fast JE; Pacific Northwest National Laboratory, Richland, Washington 99352.
  • Ferber T; Deutsches Elektronen-Synchrotron, 22607 Hamburg.
  • Gaur V; Tata Institute of Fundamental Research, Mumbai 400005.
  • Gabyshev N; Budker Institute of Nuclear Physics SB RAS and Novosibirsk State University, Novosibirsk 630090.
  • Ganguly S; Wayne State University, Detroit, Michigan 48202.
  • Garmash A; Budker Institute of Nuclear Physics SB RAS and Novosibirsk State University, Novosibirsk 630090.
  • Gillard R; Wayne State University, Detroit, Michigan 48202.
  • Glattauer R; Institute of High Energy Physics, Vienna 1050.
  • Goh YM; Hanyang University, Seoul 133-791.
  • Grzymkowska O; H. Niewodniczanski Institute of Nuclear Physics, Krakow 31-342.
  • Haba J; The Graduate University for Advanced Studies, Hayama 240-0193 and High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801.
Phys Rev Lett ; 113(14): 142001, 2014 Oct 03.
Article em En | MEDLINE | ID: mdl-25325633
ABSTRACT
The e(+)e(-) → π(+)π(-)π(0)χ(bJ) (J = 0,1,2) processes are studied using a 118 fb(-1) data sample acquired with the Belle detector at a center-of-mass energy of 10.867 GeV. Unambiguous π(+)π(-)π(0)χ(bJ) (J = 1,2), ωχ(b1) signals are observed, and indication for ωχ(b2) is seen, both for the first time, and the corresponding cross section measurements are presented. No significant π(+)π(-)π(0)χ(b0) or ωχ(b0) signals are observed, and 90% confidence level upper limits on the cross sections for these two processes are obtained. In the π(+)π(-)π(0) invariant mass spectrum, significant non-ω signals are also observed. We search for the X(3872)-like state (named X(b)) decaying into ωϒ(1S); no significant signal is observed with a mass between 10.55 and 10.65 GeV/c(2).
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Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Ano de publicação: 2014 Tipo de documento: Article
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Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Ano de publicação: 2014 Tipo de documento: Article