Search for $B^0 \to J/ψϕ$
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We report a search for the decay $B^0 \to J/ψϕ$, using a sample of 657 $\times 10^6$ $B\bar{B}$ pairs collected with the Belle detector at the $Υ(4S)$ resonance. No statistically significant signal is found and an upper limit for the branching fraction is determined to be $\mathcal{B}(B^0 \to J/ψϕ) < 9.4 \times 10^{-7}$ at 90% confidence level.
5 pages, 2 figures, 3 tables, submitted to PRD(RC)
5 pages, 2 figures, 3 tables, submitted to PRD(RC)