Search for the decay $B_s^0\to \eta \eta$

Belle Collaboration, B. Bhuyan, K. J. Nath +184

We report results from a search for the decay $B_s^0\to \eta \eta$ using 121.4 fb${}^{-1}$ of data collected at the ${\rm Y}(5S)$ resonance with the Belle detector at the KEKB asymmetric-e…