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. ChangA. 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, Youngjoon 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

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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
Publication statusPublished - 2005 May 13

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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    Choi, S. K., Olsen, S. L., Abe, K., Abe, K., Adachi, I., Aihara, H., Asano, Y., Bahinipati, S., Bakich, A. M., Ban, Y., Bedny, I., Bitenc, U., Bizjak, I., Bondar, A., Bozek, A., Bračko, M., Brodzicka, J., Browder, T. E., Chang, M. C., ... Zürcher, D. (2005). Observation of a near-threshold ωj/ψ mass enhancement in exclusive B→KωJ/ψ decays. Physical review letters, 94(18), [182002]. https://doi.org/10.1103/PhysRevLett.94.182002