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Álvarez González, B; Appel, J A; Badgett, W; Barbaro-Galtieri, A; Bartos, P; Bauce, M; Bellettini, G; Bisello, D; Bortoletto, D; Budd, H S; Burkett, K; Camarda, S; Carrillo, S; Cavaliere, V; Cerri, A; Chertok, M; Compostella, G; Cordelli, M; Dagenhart, D; d'Ascenzo, N; D'Onofrio, M; Dorigo, M; Dorigo, T; Ebina, K; Errede, S; Farrington, S; Feindt, M; Funakoshi, Y; Giagu, S; Giakoumopoulou, V; Giannetti, P; Giokaris, N; Gold, M; Gorelov, I; Guimaraes da Costa, J; Halkiadakis, E; Hamaguchi, A; Hays, C; Hussein, M; Ivanov, A; Jeon, E J; Jun, S Y; Kasmi, A; Kim, S H; Kirby, M; Kwang, S; Lammel, S; Lancaster, M; Latino, G; Lee, S W; Lewis, J D; Litvintsev, D O; Liu, H; Lucchesi, D; Lungu, G; Manca, G; Matera, K; McFarland, K S; McIntyre, P; Mesropian, C; Moggi, N; Mondragon, M N; Naganoma, J; Nett, J; Pellett, D E; Penzo, A; Pianori, E; Redondo, I; Rolli, S; Roser, R; Ruiz, A; Rusu, V; Santi, L; Schlabach, P; Schmidt, A; Schmidt, E E; Scodellaro, L; Shepard, P F; Shochet, M; Simonenko, A; Sinervo, P; Sorin, V; Song, H; Squillacioti, P; Stelzer-Chilton, O; Takemasa, K; Tang, J; Thom, J; Totaro, P; Velev, G; Wallny, R; Wang, S M; Wilson, P; Wittich, P; Wolbers, S; Wright, T; Yeh, G P; Yorita, K; Yu, G B; Zucchelli, S
Physical review letters, 2012-Oct-26, Letnik: 109, Številka: 17Journal Article
We report a measurement of the bottom-strange meson mixing phase β(s) using the time evolution of B(s)(0)→J/ψ(→μ(+)μ(-))φ(→K(+)K(-)) decays in which the quark-flavor content of the bottom-strange meson is identified at production. This measurement uses the full data set of proton-antiproton collisions at √s=1.96 TeV collected by the Collider Detector experiment at the Fermilab Tevatron, corresponding to 9.6 fb(-1) of integrated luminosity. We report confidence regions in the two-dimensional space of β(s) and the B(s)(0) decay-width difference ΔΓ(s) and measure β(s)∈-π/2,-1.51∪-0.06,0.30∪1.26,π/2 at the 68% confidence level, in agreement with the standard model expectation. Assuming the standard model value of β(s), we also determine ΔΓ(s)=0.068±0.026(stat)±0.009(syst) ps(-1) and the mean B(s)(0) lifetime τ(s)=1.528±0.019(stat)±0.009(syst) ps, which are consistent and competitive with determinations by other experiments.
