Prediction of the $CP$ asymmetry $C_{00}$ in $B^0\to D^0\overline{D^0}$ decay

Dibyakrupa Sahoo, Hai-Yang Cheng, Cheng-Wei Chiang +2

Of all $B\to D\overline{D}$ decays, the $B^0\to D^0\overline{D^0}$ decay has the smallest observed branching ratio as it takes place primarily via the suppressed $W$-exchange d…