Search for $B^0\to J/\psi \varphi$

Belle Collaboration, Y. Liu, K. Trabelsi

We report a search for the decay $B^0\to J/\psi \varphi$, using a sample of 657 $\times 10^6$ $B\bar{B}$ pairs collected with the Belle detector at the ${\rm Y}(4S)$ resonance. No statistically s…