Observation of a new charged charmoniumlike state in B ¯ 0 →j/ψK-π+ decays observation of a new charged charmoniumlike ... K. Chilikin et al.

K. Chilikin, R. Mizuk, I. Adachi, H. Aihara, S. Al Said, K. Arinstein, D. M. Asner, V. Aulchenko, T. Aushev, R. Ayad, T. Aziz, A. M. Bakich, V. Bansal, A. Bondar, G. Bonvicini, A. Bozek, M. Bračko, T. E. Browder, D. Červenkov, V. ChekelianA. Chen, B. G. Cheon, R. Chistov, K. Cho, V. Chobanova, S. K. Choi, Y. Choi, D. Cinabro, M. Danilov, Z. DoleŽal, Z. Drásal, A. Drutskoy, K. Dutta, S. Eidelman, D. Epifanov, H. Farhat, J. E. Fast, T. Ferber, O. Frost, V. Gaur, N. Gabyshev, S. Ganguly, A. Garmash, R. Gillard, Y. M. Goh, B. Golob, O. Grzymkowska, J. Haba, T. Hara, K. Hayasaka, H. Hayashii, X. H. He, W. S. Hou, M. Huschle, H. J. Hyun, A. Ishikawa, R. Itoh, Y. Iwasaki, I. Jaegle, K. K. Joo, T. Julius, T. Kawasaki, C. Kiesling, D. Y. Kim, H. J. Kim, J. H. Kim, M. J. Kim, Y. J. Kim, K. Kinoshita, B. R. Ko, S. Korpar, P. KriŽan, P. Krokovny, T. Kuhr, A. Kuzmin, Y. J. Kwon, J. S. Lange, Y. Li, L. Li Gioi, J. Libby, Y. Liu, D. Liventsev, P. Lukin, K. Miyabayashi, H. Miyata, G. B. Mohanty, A. Moll, T. Mori, R. Mussa, E. Nakano, M. Nakao, T. Nanut, Z. Natkaniec, E. Nedelkovska, N. K. Nisar, S. Nishida, S. Ogawa, S. Okuno, S. L. Olsen, P. Pakhlov, G. Pakhlova, C. W. Park, H. Park, T. K. Pedlar, M. Petrič, L. E. Piilonen, E. RibeŽl, M. Ritter, A. Rostomyan, Y. Sakai, S. Sandilya, L. Santelj, T. Sanuki, Y. Sato, V. Savinov, O. Schneider, G. Schnell, C. Schwanda, O. Seon, V. Shebalin, C. P. Shen, T. A. Shibata, J. G. Shiu, B. Shwartz, A. Sibidanov, F. Simon, Y. S. Sohn, A. Sokolov, E. Solovieva, M. Starič, M. Steder, K. Sumisawa, T. Sumiyoshi, U. Tamponi, K. Tanida, G. Tatishvili, Y. Teramoto, F. Thorne, K. Trabelsi, M. Uchida, S. Uehara, T. Uglov, Y. Unno, S. Uno, P. Urquijo, C. Van Hulse, P. Vanhoefer, G. Varner, A. Vinokurova, M. N. Wagner, C. H. Wang, M. Z. Wang, P. Wang, X. L. Wang, Y. Watanabe, S. Wehle, K. M. Williams, E. Won, J. Yamaoka, S. Yashchenko, Z. P. Zhang, V. Zhilich, V. Zhulanov, A. Zupanc

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Abstract

We present the results of an amplitude analysis of B¯0→J/ψK-π+ decays. A new charged charmoniumlike state Zc(4200)+ decaying to J/ψπ+ is observed with a significance of 6.2σ. The mass and width of the Zc(4200)+ are 4196-29-13+31+17MeV/c2 and 370-70-132+70+70MeV, respectively; the preferred assignment of the quantum numbers is JP=1+. In addition, we find evidence for Zc(4430)+→J/ψπ+. The analysis is based on a 711fb-1 data sample collected by the Belle detector at the asymmetric-energy e+e- collider KEKB.

Original languageEnglish
Article number112009
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Volume90
Issue number11
DOIs
Publication statusPublished - 2014 Dec 16

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Physics and Astronomy (miscellaneous)

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    Chilikin, K., Mizuk, R., Adachi, I., Aihara, H., Al Said, S., Arinstein, K., Asner, D. M., Aulchenko, V., Aushev, T., Ayad, R., Aziz, T., Bakich, A. M., Bansal, V., Bondar, A., Bonvicini, G., Bozek, A., Bračko, M., Browder, T. E., Červenkov, D., ... Zupanc, A. (2014). Observation of a new charged charmoniumlike state in B ¯ 0 →j/ψK-π+ decays observation of a new charged charmoniumlike ... K. Chilikin et al. Physical Review D - Particles, Fields, Gravitation and Cosmology, 90(11), [112009]. https://doi.org/10.1103/PhysRevD.90.112009