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Study of the baryon-antibaryon low-mass enhancements in charmless three-body baryonic B decays

  • M. Z. Wang
  • , K. Abe
  • , K. Abe
  • , H. Aihara
  • , Y. Asano
  • , V. Aulchenko
  • , T. Aushev
  • , S. Bahinipati
  • , A. M. Bakich
  • , I. Bedny
  • , U. Bitenc
  • , I. Bizjak
  • , A. Bozek
  • , M. Bračko
  • , J. Brodzicka
  • , T. E. Browder
  • , M. C. Chang
  • , P. Chang
  • , Y. Chao
  • , A. Chen
  • K. F. Chen, W. T. Chen, B. G. Cheon, R. Chistov, S. K. 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, A. Gorišek, J. Haba, K. Hayasaka, M. Hazumi, L. Hinz, T. Hokuue, Y. Hoshi, S. Hou, W. S. Hou, Y. B. Hsiung, T. Iijima, A. Imoto, K. Inami, A. Ishikawa, R. Itoh, M. Iwasaki, Y. Iwasaki, J. H. Kang, J. S. Kang, N. Katayama, H. Kawai, T. Kawasaki, H. R. Khan, H. Kichimi, H. J. Kim, S. K. Kim, S. M. Kim, K. Kinoshita, S. Korpar, P. Križan, P. Krokovny, S. Kumar, C. C. Kuo, T. L. Kuo, A. Kuzmin, Y. J. Kwon, G. Leder, S. E. Lee, Y. J. Lee, T. Lesiak, J. Li, S. W. Lin, D. Liventsev, J. MacNaughton, F. Mandl, T. Matsumoto, A. Matyja, W. Mitaroff, H. Miyake, H. Miyata, R. Mizuk, G. R. Moloney, T. Nagamine, Y. Nagasaka, E. Nakano, M. Nakao, H. Nakazawa, Z. Natkaniec, S. Nishida, O. Nitoh, S. Ogawa, T. Ohshima, T. Okabe, S. L. Olsen, W. Ostrowicz, H. Ozaki, H. Palka, C. W. Park, N. Parslow, L. S. Peak, R. Pestotnik, L. E. Piilonen, N. Root, H. Sagawa, Y. Sakai, N. Sato, T. Schietinger, O. Schneider, J. Schümann, K. Senyo, M. E. Sevior, T. Shibata, H. Shibuya, B. Shwartz, V. Sidorov, J. B. Singh, A. Somov, N. Soni, R. Stamen, S. Stanič, M. Starič, K. Sumisawa, T. Sumiyoshi, O. Tajima, F. Takasaki, K. Tamai, N. Tamura, M. Tanaka, Y. Teramoto, X. C. Tian, T. Tsukamoto, S. Uehara, K. Ueno, T. Uglov, S. Uno, P. Urquijo, G. Varner, K. E. Varvell, S. Villa, C. C. Wang, C. H. Wang, M. Watanabe, Q. L. Xie, B. D. Yabsley, A. Yamaguchi, Y. Yamashita, M. Yamauchi, Heyoung Yang, J. Ying, L. M. Zhang, Z. P. Zhang, V. Zhilich, D. Žontar
  • National Taiwan University
  • High Energy Accelerator Research Organization, Tsukuba
  • Tohoku Gakuin University
  • The University of Tokyo
  • University of Tsukuba
  • RAS - Budker Institute of Nuclear Physics
  • Alikhanov Institute for Theoretical and Experimental Physics
  • University of Cincinnati
  • The University of Sydney
  • Jožef Stefan Institute
  • H. Niewodniczanski Institute of Nuclear Physics
  • University of Maribor
  • University of Hawai'i at Mānoa
  • National Central University
  • Chonnam National University
  • Gyeongsang National University
  • Princeton University
  • University of Melbourne
  • Virginia Polytechnic Institute and State University
  • Nagoya University
  • Tata Institute of Fundamental Research
  • University of Ljubljana
  • Swiss Federal Institute of Technology Lausanne
  • Nara Women's University
  • Yonsei University
  • Korea University
  • Chiba University
  • Niigata University
  • Institute of Science Tokyo
  • Seoul National University
  • Sungkyunkwan University
  • Panjab University
  • Austrian Academy of Sciences
  • University of Science and Technology of China
  • Tokyo Metropolitan University
  • The University of Osaka
  • Tohoku University
  • Hiroshima Institute of Technology
  • Osaka Metropolitan University
  • Tokyo University of Agriculture and Technology
  • Toho University
  • University of Nova Gorica
  • Peking University
  • National United University Taiwan
  • CAS - Institute of High Energy Physics
  • Nihon Dental College

Research output: Contribution to journalArticlepeer-review

77 Scopus citations

Abstract

The angular distributions of the baryon-antibaryon low-mass enhancements seen in the charmless three-body baryonic B decays B +→pp̄ K +, B 0→pp̄K S 0 and B 0→pΛ̄π - are reported. A quark fragmentation interpretation is supported, while the gluonic resonance picture is disfavored. Searches for the Θ + and Θ ++ pentaquarks in the relevant decay modes and possible glueball states G with 2.2 GeV/c 2<M pp̄<2.4 GeV/c 2 in the pp̄ systems give null results. We set upper limits on the products of branching fractions, Β(B 0→Θ +p̄) Β(Θ +→pK S 0)<2.3×10 -7, Β(B +→Θ ++p̄) Β(Θ ++→pK +)<9.1×10 -8, and Β(B +→GK +)B(G→pp̄)<4. 1×10 -7 at the 90% confidence level. The analysis is based on a 140 fb -1 data sample recorded on the Υ(4S) resonance with the Belle detector at the KEKB asymmetric energy e +e - collider.

Original languageEnglish
Pages (from-to)141-149
Number of pages9
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume617
Issue number3-4
DOIs
StatePublished - 30 Jun 2005

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