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Observation of e+e- →π+π-π0χbJ and search for Xb →ω (1S) at s =10.867GeV

  • X. H. He
  • , C. P. Shen
  • , C. Z. Yuan
  • , Y. Ban
  • , A. Abdesselam
  • , I. Adachi
  • , H. Aihara
  • , D. M. Asner
  • , V. Aulchenko
  • , T. Aushev
  • , R. Ayad
  • , S. Bahinipati
  • , A. M. Bakich
  • , V. Bansal
  • , B. Bhuyan
  • , A. Bondar
  • , G. Bonvicini
  • , A. Bozek
  • , M. Bračko
  • , T. E. Browder
  • D. Červenkov, P. Chang, V. Chekelian, A. Chen, B. G. Cheon, K. Chilikin, R. Chistov, K. Cho, V. Chobanova, S. K. Choi, Y. Choi, D. Cinabro, J. Dalseno, M. Danilov, Z. DoleŽal, Z. Drásal, A. Drutskoy, S. Eidelman, H. Farhat, J. E. Fast, T. Ferber, V. Gaur, N. Gabyshev, S. Ganguly, A. Garmash, R. Gillard, R. Glattauer, Y. M. Goh, O. Grzymkowska, J. Haba, K. Hayasaka, H. Hayashii, W. S. Hou, T. Iijima, A. Ishikawa, R. Itoh, Y. Iwasaki, I. Jaegle, K. K. Joo, T. Julius, E. Kato, T. Kawasaki, D. Y. Kim, M. J. Kim, Y. J. Kim, K. Kinoshita, B. R. Ko, P. Kodyš, S. Korpar, P. KriŽan, P. Krokovny, T. Kumita, A. Kuzmin, Y. J. Kwon, J. S. Lange, Y. Li, J. Libby, D. Liventsev, D. Matvienko, K. Miyabayashi, H. Miyata, R. Mizuk, G. B. Mohanty, A. Moll, R. Mussa, E. Nakano, M. Nakao, H. Nakazawa, T. Nanut, Z. Natkaniec, E. Nedelkovska, N. K. Nisar, S. Nishida, S. Ogawa, S. Okuno, P. Pakhlov, G. Pakhlova, H. Park, T. K. Pedlar, R. Pestotnik, M. Petrič, L. E. Piilonen, M. Ritter, A. Rostomyan, Y. Sakai, S. Sandilya, L. Santelj, T. Sanuki, Y. Sato, V. Savinov, O. Schneider, G. Schnell, C. Schwanda, D. Semmler, K. Senyo, M. E. Sevior, V. Shebalin, T. A. Shibata, J. G. Shiu, B. Shwartz, A. Sibidanov, F. Simon, Y. S. Sohn, A. Sokolov, E. Solovieva, M. Starič, M. Steder, K. Sumisawa, T. Sumiyoshi, U. Tamponi, K. Tanida, G. Tatishvili, Y. Teramoto, F. Thorne, K. Trabelsi, M. Uchida, S. Uehara, T. Uglov, Y. Unno, S. Uno, P. Urquijo, S. E. Vahsen, C. Van Hulse, P. Vanhoefer, G. Varner, A. Vinokurova, V. Vorobyev, M. N. Wagner, C. H. Wang, M. Z. Wang, P. Wang, X. L. Wang, M. Watanabe, Y. Watanabe, S. Wehle, K. M. Williams, E. Won, J. Yamaoka, S. Yashchenko, Y. Yook, Y. Yusa, Z. P. Zhang, V. Zhilich, V. Zhulanov, A. Zupanc
  • Peking University
  • Beihang University
  • CAS - Institute of High Energy Physics
  • University of Tabuk
  • The Graduate University for Advanced Studies
  • High Energy Accelerator Research Organization, Tsukuba
  • The University of Tokyo
  • Pacific Northwest National Laboratory
  • Novosibirsk State University
  • Alikhanov Institute for Theoretical and Experimental Physics
  • Indian Institute of Technology Bhubaneswar
  • The University of Sydney
  • Indian Institute of Technology Guwahati
  • Wayne State University
  • H. Niewodniczanski Institute of Nuclear Physics
  • Jožef Stefan Institute
  • University of Maribor
  • University of Hawai'i at Mānoa
  • Charles University
  • National Taiwan University
  • Max Planck Institute for Physics (Werner Heisenberg Institute)
  • National Central University
  • Hanyang University
  • Korea Institute of Science and Technology Information
  • Gyeongsang National University
  • Sungkyunkwan University
  • Technische Universität München
  • Moscow Engineering Physics Institute
  • German Electron Synchrotron
  • Tata Institute of Fundamental Research
  • Austrian Academy of Sciences
  • Nagoya University
  • Nara Women's University
  • Tohoku University
  • Chonnam National University
  • University of Melbourne
  • Niigata University
  • Soongsil University
  • University of Cincinnati
  • Korea University
  • University of Ljubljana
  • Tokyo Metropolitan University
  • Yonsei University
  • Justus Liebig University Giessen
  • Virginia Polytechnic Institute and State University
  • Indian Institute of Technology Madras
  • National Institute for Nuclear Physics
  • Osaka Metropolitan University
  • Toho University
  • Kanagawa University
  • Kyungpook National University
  • Luther College, Decorah
  • University of Pittsburgh
  • Swiss Federal Institute of Technology Lausanne
  • University of the Basque Country
  • Ikerbasque Basque Foundation for Science
  • Yamagata University
  • Institute of Science Tokyo
  • Institute for High Energy Physics
  • University of Turin
  • Seoul National University
  • Moscow Institute of Physics and Technology
  • University of Bonn
  • National United University Taiwan
  • University of Science and Technology of China

Research output: Contribution to journalArticlepeer-review

62 Scopus citations

Abstract

The e+e-→π+π-π0χbJ (J=0,1,2) processes are studied using a 118fb-1 data sample acquired with the Belle detector at a center-of-mass energy of 10.867 GeV. Unambiguous π+π-π0χbJ (J=1,2), ωχb1 signals are observed, and indication for ωχb2 is seen, both for the first time, and the corresponding cross section measurements are presented. No significant π+π-π0χb0 or ωχb0 signals are observed, and 90% confidence level upper limits on the cross sections for these two processes are obtained. In the π+π-π0 invariant mass spectrum, significant non-ω signals are also observed. We search for the X(3872)-like state (named Xb) decaying into ω?(1S); no significant signal is observed with a mass between 10.55 and 10.65GeV/c2.

Original languageEnglish
Article number142001
JournalPhysical Review Letters
Volume113
Issue number14
DOIs
StatePublished - 30 Sep 2014

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