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.

References in corpus (3)

• Charmless non-leptonic B_s decays to PP, PV and VV final states in the pQCD approach
• Updating B --> PP, VP decays in the framework of flavor symmetry
• Evidence for B-> eta' pi and improved measurements for B-> eta' K