Observation of a Narrow Charmoniumlike State in Exclusive B ± → K±π+π- J/Ψ Decays

S. K. Choi, S. L. Olsen, K. Abe, T. Abe, I. Adachi, Byoung Sup Ahn, H. Aihara, K. Akai, M. Akatsu, M. Akemoto, Y. Asano, T. Aso, V. Aulchenko, T. Aushev, A. M. Bakich, Y. Ban, S. Banerjee, A. Bondar, A. Bozek, M. BračkoJ. Brodzicka, T. E. Browder, P. Chang, Y. Chao, K. F. Chen, B. G. Cheon, R. Chistov, Y. Choi, Y. K. Choi, M. Danilov, L. Y. Dong, A. Drutskoy, S. Eidelman, V. Eiges, J. Flanagan, C. Fukunaga, K. Furukawa, N. Gabyshev, T. Gershon, B. Golob, H. Guler, R. Guo, C. Hagner, F. Handa, T. Hara, N. C. Hastings, H. Hayashii, M. Hazumi, L. Hinz, Y. Hoshi, W. S. Hou, Y. B. Hsiung, H. C. Huang, T. Iijima, K. Inami, A. Ishikawa, R. Itoh, M. Iwasaki, Y. Iwasaki, J. H. Kang, S. U. Kataoka, N. Katayama, H. Kawai, T. Kawasaki, H. Kichimi, E. Kikutani, H. J. Kim, Hyunwoo Kim, J. H. Kim, S. K. Kim, K. Kinoshita, H. Koiso, P. Koppenburg, S. Korpar, P. Križan, P. Krokovny, S. Kumar, A. Kuzmin, J. S. Lange, G. Leder, S. H. Lee, T. Lesiak, S. W. Lin, D. Liventsev, J. MacNaughton, G. Majumder, F. Mandl, D. Marlow, T. Matsumoto, S. Michizono, T. Mimashi, W. Mitaroff, K. Miyabayashi, H. Miyake, D. Mohapatra, G. R. Moloney, T. Nagamine, Y. Nagasaka, T. Nakadaira, T. T. Nakamura, M. Nakao, Z. Natkaniec, S. Nishida, O. Nitoh, T. Nozaki, S. Ogawa, Y. Ogawa, K. Ohmi, Y. Ohnishi, T. Ohshima, N. Ohuchi, K. Oide, T. Okabe, S. Okuno, W. Ostrowicz, H. Ozaki, H. Palka, H. Park, N. Parslow, L. E. Piilonen, H. Sagawa, S. Saitoh, Y. Sakai, T. R. Sarangi, M. Satapathy, A. Satpathy, O. Schneider, A. J. Schwartz, S. Semenov, K. Senyo, R. Seuster, M. E. Sevior, H. Shibuya, T. Shidara, B. Shwartz, V. Sidorov, N. Soni, S. Stanič, M. Starič, A. Sugiyama, T. Sumiyoshi, S. Suzuki, F. Takasaki, K. Tamai, N. Tamura, M. Tanaka, M. Tawada, G. N. Taylor, Y. Teramoto, T. Tomura, K. Trabelsi, T. Tsukamoto, S. Uehara, K. Ueno, Y. Unno, S. Uno, G. Varner, K. E. Varvell, C. C. Wang, C. H. Wang, J. G. Wang, Y. Watanabe, E. Won, B. D. Yabsley, Y. Yamada, A. Yamaguchi, Y. Yamashita, H. Yanai, Heyoung Yang, J. Ying, M. Yoshida, C. C. Zhang, Z. P. Zhang, D. Žontar

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Abstract

A narrow charmoniumlike state in exclusive B±→K ±π+π-J/φ decays was observed. This mass value and the absence of a strong signal in the γχc1 decay channel were in some disagreement with potential model expectations for the 3Dc2 charmonium state. The mass was within errors at the D0D*0 mass threshold. The results show that charmonium decays to ρJ/φ violate isospin and are expected to be suppressed.

Original languageEnglish (US)
Article number262001
Pages (from-to)2620011-2620016
Number of pages6
JournalPhysical review letters
Volume91
Issue number26 I
StatePublished - Dec 31 2003

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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    Choi, S. K., Olsen, S. L., Abe, K., Abe, T., Adachi, I., Ahn, B. S., Aihara, H., Akai, K., Akatsu, M., Akemoto, M., Asano, Y., Aso, T., Aulchenko, V., Aushev, T., Bakich, A. M., Ban, Y., Banerjee, S., Bondar, A., Bozek, A., ... Žontar, D. (2003). Observation of a Narrow Charmoniumlike State in Exclusive B ± → K±π+π- J/Ψ Decays. Physical review letters, 91(26 I), 2620011-2620016. [262001].