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. ChenK. 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

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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
Publication statusPublished - 2005 Jun 30

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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    Wang, M. Z., Abe, K., Abe, K., Aihara, H., Asano, Y., Aulchenko, V., Aushev, T., Bahinipati, S., Bakich, A. M., Bedny, I., Bitenc, U., Bizjak, I., Bozek, A., Bračko, M., Brodzicka, J., Browder, T. E., Chang, M. C., Chang, P., Chao, Y., ... Žontar, D. (2005). Study of the baryon-antibaryon low-mass enhancements in charmless three-body baryonic B decays. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 617(3-4), 141-149. https://doi.org/10.1016/j.physletb.2005.05.008