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Alkhazov, G; Berezhnoy, A; Blanc, F; Borghi, S; Britton, T; Campana, P; Cauet, Ch; Cavallero, G; Chefdeville, M; Chen, S; Cliff, H V; Contu, A; Cook, A; Davis, A; De Paula, L; Dosil Suárez, A; Dovbnya, A; Durante, P; Eklund, L; Elsasser, Ch; Ferrari, F; Ferreira Rodrigues, F; Fleuret, F; Fontana, M; Forshaw, D C; Frei, C; Fu, J; Garra Tico, J; Ghez, Ph; Gibson, V; Golubkov, D; Grillo, L; Grünberg, O; Gushchin, E; Göbel, C; Hadavizadeh, T; Henrard, P; Hombach, C; Jans, E; Jawahery, A; John, M; Jones, C R; Karodia, S; Kecke, M; Ketel, T; Koppenburg, P; Kruse, F; Lanfranchi, G; Leflat, A; Lefèvre, R; Lemaitre, F; Lopes, J H; Maev, O; Marks, J; Martin, M; Mazurov, A; Morandin, M; Morawski, P; Mulder, M; Müller, J; Nandi, A; Neufeld, N; Niet, R; Palombo, F; Perazzini, S; Petruzzo, M; Playfer, S; Polycarpo, E; Potterat, C; Price, E; Quagliani, R; Rachwal, B; Rama, M; Rangel, M S; Raniuk, I; Dos Reis, A C; Richards, S; Rihl, M; Rodriguez Perez, P; Sadykhov, E; Salustino Guimaraes, V; Santimaria, M; Satriano, C; Saunders, D M; Simone, S; Snoek, H; Stahl, M; Stenyakin, O; Swientek, K; Syropoulos, V; Szumlak, T; Tellarini, G; Traill, M; Viaud, B; Volkov, V; Wicht, J; Wislicki, W; Wotton, S A; Yu, J; Zucchelli, S
Physical review letters, 01/2017, Letnik: 118, Številka: 2Journal Article
The first full amplitude analysis of B^{+}→J/ψϕK^{+} with J/ψ→μ^{+}μ^{-}, ϕ→K^{+}K^{-} decays is performed with a data sample of 3 fb^{-1} of pp collision data collected at sqrts=7 and 8 TeV with the LHCb detector. The data cannot be described by a model that contains only excited kaon states decaying into ϕK^{+}, and four J/ψϕ structures are observed, each with significance over 5 standard deviations. The quantum numbers of these structures are determined with significance of at least 4 standard deviations. The lightest has mass consistent with, but width much larger than, previous measurements of the claimed X(4140) state.
