Testing leptoquark models in $\bar{B}\to D^{(\ast )}\tau \bar{\nu }$

Yasuhito Sakaki, Minoru Tanaka, Andrey Tayduganov +1

We study potential New Physics effects in the $\bar{B}\to D^{(\ast )}\tau \bar{\nu }$ decays. As a particular example of New Physics models we consider the class of leptoquark models and put t…