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Observation of a near-threshold ωj/ψ mass enhancement in exclusive B→KωJ/ψ decays

  • S. K. Choi
  • , S. L. Olsen
  • , K. Abe
  • , K. Abe
  • , I. Adachi
  • , H. Aihara
  • , Y. Asano
  • , S. Bahinipati
  • , A. M. Bakich
  • , Y. Ban
  • , I. Bedny
  • , U. Bitenc
  • , I. Bizjak
  • , A. Bondar
  • , A. Bozek
  • , M. Bračko
  • , J. Brodzicka
  • , T. E. Browder
  • , M. C. Chang
  • , P. Chang
  • A. Chen, W. T. Chen, B. G. Cheon, R. Chistov, Y. Choi, A. Chuvikov, S. Cole, J. Dalseno, M. Danilov, M. Dash, A. Drutskoy, S. Eidelman, Y. Enari, F. Fang, S. Fratina, N. Gabyshev, T. Gershon, G. Gokhroo, B. Golob, T. Hara, N. C. Hastings, K. Hayasaka, H. Hayashii, M. Hazumi, L. Hinz, T. Hokuue, Y. Hoshi, S. Hou, W. S. Hou, Y. B. Hsiung, T. Iijima, A. Imoto, K. Inami, A. Ishikawa, M. Iwasaki, Y. Iwasaki, J. H. Kang, J. S. Kang, S. U. Kataoka, N. Katayama, H. Kawai, T. Kawasaki, H. R. Khan, H. Kichimi, H. J. Kim, S. M. Kim, K. Kinoshita, S. Korpar, P. Križan, P. Krokovny, C. C. Kuo, A. Kuzmin, Y. J. Kwon, J. S. Lange, S. E. Lee, S. H. Lee, T. Lesiak, J. Li, S. W. Lin, D. Liventsev, G. Majumder, T. Matsumoto, A. Matyja, W. Mitaroff, K. Miyabayashi, H. Miyata, R. Mizuk, D. Mohapatra, G. R. Moloney, E. Nakano, M. Nakao, H. Nakazawa, S. Nishida, O. Nitoh, S. Ogawa, T. Ohshima, T. Okabe, S. Okuno, W. Ostrowicz, H. Palka, C. W. Park, N. Parslow, R. Pestotnik, L. E. Piilonen, M. Rozanska, H. Sagawa, Y. Sakai, N. Sato, T. Schietinger, O. Schneider, C. Schwanda, H. Shibuya, B. Shwartz, A. Somov, N. Soni, S. Stanič, M. Starič, T. Sumiyoshi, S. Suzuki, S. Y. Suzuki, O. Tajima, F. Takasaki, K. Tamai, N. Tamura, Y. Teramoto, X. C. Tian, K. Trabelsi, S. Uehara, T. Uglov, S. Uno, G. Varner, K. E. Varvell, S. Villa, C. H. Wang, M. Z. Wang, M. Watanabe, B. D. Yabsley, A. Yamaguchi, Y. Yamashita, M. Yamauchi, H. Yang, Y. Yuan, Y. Yusa, C. C. Zhang, J. Zhang, L. M. Zhang, Z. P. Zhang, D. Žontar, D. Zürcher
  • Gyeongsang National University
  • University of Hawai'i at Mānoa
  • High Energy Accelerator Research Organization, Tsukuba
  • Tohoku Gakuin University
  • The University of Tokyo
  • University of Tsukuba
  • University of Cincinnati
  • The University of Sydney
  • Peking University
  • RAS - Budker Institute of Nuclear Physics
  • Jožef Stefan Institute
  • H. Niewodniczanski Institute of Nuclear Physics
  • University of Maribor
  • National Taiwan University
  • National Central University
  • Chonnam National University
  • Alikhanov Institute for Theoretical and Experimental Physics
  • Sungkyunkwan University
  • Princeton University
  • University of Melbourne
  • Virginia Polytechnic Institute and State University
  • Nagoya University
  • Tata Institute of Fundamental Research
  • University of Ljubljana
  • The University of Osaka
  • Nara Women's University
  • Swiss Federal Institute of Technology Lausanne
  • Yonsei University
  • Korea University
  • Chiba University
  • Niigata University
  • Institute of Science Tokyo
  • Goethe University Frankfurt
  • Seoul National University
  • University of Science and Technology of China
  • Tokyo Metropolitan University
  • Austrian Academy of Sciences
  • Osaka Metropolitan University
  • Tokyo University of Agriculture and Technology
  • Toho University
  • Kanagawa University
  • Panjab University
  • Saga University
  • National United University Taiwan
  • Tohoku University
  • Nihon Dental College
  • CAS - Institute of High Energy Physics

Research output: Contribution to journalArticlepeer-review

444 Scopus citations

Abstract

We report the observation of a near-threshold enhancement in the ωJ/ψ invariant mass distribution for exclusive B→KωJ/ψ decays. The results are obtained from a 253fb-1 data sample that contains 275×106 BB̄ pairs that were collected near the Υ(4S) resonance with the Belle detector at the KEKB asymmetric energy e+e- collider. The statistical significance of the ωJ/ψ mass enhancement is estimated to be greater than 8σ.

Original languageEnglish
Article number182002
JournalPhysical Review Letters
Volume94
Issue number18
DOIs
StatePublished - 13 May 2005

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