Search for the Decay $B_s^0\to {\eta }^{\prime }\eta$

Abstract

We report the results of the first search for the decay $B_s^0\to {\eta }^{\prime }\eta$ using $121.4{\text{fb}}^{-1}$ of data collected at the ${\rm Y}(5S)$ resonance with the Belle detector at the KEKB asymmetric-energy $e^{+}{e}^{-}$ collider. We observe no significant signal and set a 90\% confidence-level upper limit of %$7.1\times 10^{-5}$ $6.5\times 10^{-5}$ on the branching fraction of this decay.

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Cited by in corpus (2)

• Averages of $b$-hadron, $c$-hadron, and $\tau$-lepton properties as of 2021
• Anomalies in Hadronic $B$ Decays: an Update