Search for the decay $B_s^0\to \hat{I}\cdot \hat{I}\cdot$

Abstract

We report results from a search for the decay $B_s^0\to \hat{I}\cdot \hat{I}\cdot$ using 121.4 fb${}^{-1}$ of data collected at the $\hat{I}\yen (5S)$ resonance with the Belle detector at the KEKB asymmetric-energy $e^{+}{e}^{-}$ collider. We do not observe any signal and set an upper limit on the branching fraction of $14.3\times 10^{-5}$ at $90\%$ confidence level. This result represents a significant improvement over the previous most stringent limit.

7 pages, 6 figures