Constraints on anomalous $tcZ$ coupling from $\bar{B}\to {\bar{K}}^{\ast }{\mu }^{+}{\mu }^{-}$ and $B_s\to {\mu }^{+}{\mu }^{-}$ decays

Hui Gong, Ya-Dong Yang, Xing-Bo Yuan

In this paper, we analyze the possible anomalous $tcZ$ coupling effects in the $b\to s$ mediated decays $\bar{B}\to {\bar{K}}^{\ast }{\mu }^{+}{\mu }^{-}$ and $B_s\to {\mu }^{+}{\mu }^{-}$. After exploiting the…