0 s Decays at Belle
نویسنده
چکیده
unique opportunity to study the poorly-known Bs meson. Three analyses, using a sample of 23.6 fb−1, are presented. We report the first observation of the three dominant exclusive Bs decays, Bs → D∗− s π+, Bs → Ds ρ+ and Bs → D∗− s ρ+, the first observation of the CP-eigenstate decay Bs → J/ψ η , and the results from a study of the charmless Bs → K+K−, Bs → K+π−, Bs → π+π− and Bs → K0 S K0 S decays. The following branching fraction measurements are presented: (When mentioned, the systematic errors due to the uncertainties on the fraction fs = σ(e+e−→ B s B̄ s )/σbb̄ and on the decay polarization (pol.) are quoted separately.)
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