Measurements of the branching fraction and CP-violation asymmetries in B0 f0(980)KS0

Published

Journal Article

We present measurements of the branching fraction and CP-violating asymmetries in the decay B0 → f0(980)K s0. The results are obtained from a data sample of 123 × 106 Y(4S) → BBÌ„ decays. From a time-dependent maximum likelihood fit, we measure the branching fraction B(B0 → f0(980)(→ π+ π-)K0) = (6.0 ± 0.9 ± 0.6 ± 1.2) × 10-6, the mixing-induced CP violation parameter S = -1.62-0.51+0.56 ± 0.09 ± 0.04, and the direct CP violation parameter C = 0.27 ± 0.36 ± 0.10 ± 0.07, where the first errors are statistical, the second systematic, and the third due to model uncertainties. We measure the f0 (980) mass and width to be mf(980) = (980.6±4.1± 0.5±4.0)MeV/c2 and Γf0(980) = (43-9+12±3±9) MeV/c2, respectively. © 2005 The American Physical Society.

Full Text

Cited Authors

  • Aubert, B; Barate, R; Boutigny, D; Couderc, F; Gaillard, JM; Hicheur, A; Karyotakis, Y; Lees, JP; Tisserand, V; Zghiche, A; Palano, A; Pompili, A; Chen, JC; Qi, ND; Rong, G; Wang, P; Zhu, YS; Eigen, G; Ofte, I; Stugu, B; Abrams, GS; Borgland, AW; Breon, AB; Brown, DN; Button-Shafer, J; Cahn, RN; Charles, E; Day, CT; Gill, MS; Gritsan, AV; Groysman, Y; Jacobsen, RG; Kadel, RW; Kadyk, J; Kerth, LT; Kolomensky, YG; Kukartsev, G; Lynch, G; Mir, LM; Oddone, PJ; Orimoto, TJ; Pripstein, M; Roe, NA; Ronan, MT; Shelkov, VG; Wenzel, WA; Barrett, M; Ford, KE; Harrison, TJ; Hart, AJ; Hawkes, CM; Morgan, SE; Watson, AT; Fritsch, M; Goetzen, K; Held, T; Koch, H; Lewandowski, B; Pelizaeus, M; Steinke, M; Boyd, JT; Chevalier, N; Cottingham, WN; Kelly, MP; Latham, TE; Wilson, FF; Cuhadar-Donszelmann, T; Hearty, C; Knecht, NS; Mattison, TS; McKenna, JA; Thiessen, D; Khan, A; Kyberd, P; Teodorescu, L; Blinov, VE; Druzhinin, VP; Golubev, VB; Ivanchenko, VN; Kravchenko, EA; Onuchin, AP; Serednyakov, SI; Skovpen, YI; Solodov, EP; Yushkov, AN; Best, D; Bruinsma, M; Chao, M; Eschrich, I; Kirkby, D; Lankford, AJ; Mandelkern, M; Mommsen, RK; Roethel, W; Stoker, DP; Buchanan, C; Hartfiel, BL; Foulkes, SD; Gary, JW; Shen, BC

Published Date

  • February 4, 2005

Published In

Volume / Issue

  • 94 / 4

Electronic International Standard Serial Number (EISSN)

  • 1079-7114

International Standard Serial Number (ISSN)

  • 0031-9007

Digital Object Identifier (DOI)

  • 10.1103/PhysRevLett.94.041802

Citation Source

  • Scopus