Belle CollaborationChilikin, 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.Bracko, M.Browder, T. E.Cervenkov, D.Chekelian, V.Chen, A.Cheon, B. G.Chistov, R.Cho, K.Chobanova, V.Choi, S. -K.Choi, Y.Cinabro, D.Danilov, M.Dolezal, Z.Drasal, Z.Drutskoy, A.Dutta, K.Eidelman, S.Epifanov, D.Farhat, H.Fast, J. E.Ferber, T.Frost, O.Gaur, V.Gabyshev, N.Ganguly, S.Garmash, A.Gillard, R.Goh, Y. M.Golob, B.Grzymkowska, O.Haba, J.Hara, T.Hayasaka, K.Hayashii, H.He, X. H.Hou, W. -S.Huschle, M.Hyun, H. J.Ishikawa, A.Itoh, R.Iwasaki, Y.Jaegle, I.Joo, K. K.Julius, T.Kawasaki, T.Kiesling, C.Kim, D. Y.Kim, H. J.Kim, J. H.Kim, M. J.Kim, Y. J.Kinoshita, K.Ko, B. R.Korpar, S.Krizan, P.Krokovny, P.Kuhr, T.Kuzmin, A.Kwon, Y. -J.Lange, J. S.Li, Y.Gioi, L. LiLibby, J.Liu, Y.Liventsev, D.Lukin, P.Miyabayashi, K.Miyata, H.Mohanty, G. B.Moll, A.Mori, T.Mussa, R.Nakano, E.Nakao, M.Nanut, T.Natkaniec, Z.Nedelkovska, E.Nisar, N. K.Nishida, S.Ogawa, S.Okuno, S.Olsen, S. L.Pakhlov, P.Pakhlova, G.Park, C. W.Park, H.Pedlar, T. K.Petric, M.Piilonen, L. E.Ribezl, E.Ritter, M.Rostomyan, A.Sakai, Y.Sandilya, S.Santelj, L.Sanuki, T.Sato, Y.Savinov, V.Schneider, O.Schnell, G.Schwanda, C.Seon, O.Shebalin, V.Shen, C. P.Shibata, T. -A.Shiu, J. -G.Shwartz, B.Sibidanov, A.Simon, F.Sohn, Y. -S.Sokolov, A.Solovieva, E.Staric, M.Steder, M.Sumisawa, K.Sumiyoshi, T.Tamponi, U.Tanida, K.Tatishvili, G.Teramoto, Y.Thorne, F.Trabelsi, K.Uchida, M.Uehara, S.Uglov, T.Unno, Y.Uno, S.Urquijo, P.Van Hulse, C.Vanhoefer, P.Varner, G.Vinokurova, A.Wagner, M. N.Wang, C. H.Wang, M. -Z.Wang, P.Wang, X. L.Watanabe, Y.Wehle, S.Williams, K. M.Won, E.Yamaoka, J.Yashchenko, S.Zhang, Z. P.Zhilich, V.Zhulanov, V.Zupanc, A.2015-04-132015-04-132015-04-13201410.1103/PhysRevD.90.112009https://infoscience.epfl.ch/handle/20.500.14299/113122WOS:000348730800002We present the results of an amplitude analysis of B-0 --> J/psi K- pi(+) decays. A new charged charmoniumlike state Z(c)(4200)(+) decaying to J/psi pi(+) is observed with a significance of 6.2 sigma. The mass and width of the Z(c)(4200)(+) are 4196(-29-13)(+31+17) MeV/c(2) and 370(-70-132)(+70+70) MeV, respectively; the preferred assignment of the quantum numbers is J(P) = 1(+). In addition, we find evidence for Z(c)(4430)(+) --> J/psi pi(+). The analysis is based on a 711 fb(-1) data sample collected by the Belle detector at the asymmetric-energy e(+)e(-) collider KEKB.text::journal::journal article::research article