Study of hadronic $B$ and $B^{0}_{s}$ decays at Belle

Dubey, Shawn; On behalf of the BELLE Collaboration,

doi:10.22323/1.398.0531

Abstract

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We report the first search for the penguin-dominated process $B_{s}^{0} \to \eta^{\prime} X_{s\bar{s}}$ using a semi-inclusive method. In the absence of a statistically significant signal, we set a 90% confidence-level upper limit 1.4 $\times 10^{-3}$ on the partial branching fraction where $M(X_{s\bar{s}}) \leq 2.4\,{\rm GeV/}c^{2}$. We also report final results for the $B^{0}_{s} \to D_{s}^{-} X$ and $B^{0}_{s} \to \eta \eta^{\prime}$ decays. These results are obtained using 121.4$\,{\rm fb}^{-1}$ data collected at the $\Upsilon(5S)$ resonance by the Belle experiment at the KEKB asymmetric-energy $e^{+}e^{-}$ collider. Furthermore, we report a measurement involving the three-body decay $B^{+} \to K^{+} K^{-} \pi^{+}$ based on the Belle data collected at the $\Upsilon(4S)$ resonance.
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