Search for the CP-violating decays ${\rm Y}(4S)B0\bar{B}0J/K{0}_S+J/\psi ({\eta }_c)K{0}_S$

O. Tajima, M Hazumi

We report the first search for CP violating decays of the ${\rm Y}(4S)$ using a data sample that contains 535 million ${\rm Y}(4S)$ mesons with the Belle detector at the KEKB asymmetric-energy…