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Observation of a new charged charmoniumlike state inB¯0→J/ψK−π+decays

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 (+152 others)
2014 Physical Review D  

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2014 pre-print
arXiv:1408.6457v1 fatcat:jvtuvbzvs5h2tpenaxar5bqi4u
2014 accepted
arXiv:1408.6457v3 fatcat:debtuogganfwvdbzavt4hucwlm
2014 pre-print
arXiv:1408.6457v2 fatcat:uaz4vh3i3nfqpbaxbmyrjetsja
We present the results of an amplitude analysis of anti-B0 -> J/psi K- pi+ decays. A new charged charmoniumlike state Zc(4200)+ decaying to J/psi pi+ is observed with a significance of 6.2 sigma. The mass and width of the Zc(4200)+ are 4196 +31-29 +17-13 MeV/c^2 and 370 +70-70 +70-132 MeV, respectively; the preferred assignment of the quantum numbers is J^P = 1^+. In addition, we find evidence for Zc(4430)+ -> J/psi pi+. The analysis is based on a 711 fb^-1 data sample collected by the Belle
more » ... ector at the asymmetric-energy e+ e- collider KEKB.
doi:10.1103/physrevd.90.112009 fatcat:iogpjyx7hjayfc766faovhae5a
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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. Chekelian, A. 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. "Observation of a new charged charmoniumlike state inB¯0→J/ψK−π+decays." Physical Review D 90.11 (2014)