Measurement of Time-dependent $CP$ Asymmetries in $B^0\to K_S^0\eta \gamma$ Decays

H. Nakano, A. Ishikawa, K. Sumisawa +187

We report a measurement of time-dependent $CP$ violation parameters in $B^0\to K_S^0\eta \gamma$ decays. The study is based on a data sample, containing $772\times 10^{6}B\bar{B}$ pai…