Abstract
We report the results of the first search for the decay $B_s^0 \rightarrow \eta^\prime \eta$ using $121.4~\textrm{fb}^{-1}$ of data collected at the $\Upsilon(5S)$ 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.
Highlights
We report the results of the first search for the decay B0s
121.4 fb−1 of data collected at the Υð5SÞ resonance with the Belle detector
The charmless hadronic decay B0s → η0η is suppressed in the Standard Model
Summary
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