Calculation of $\bar{B}\to D^{\ast }\ell \bar{\nu }$ form factor at zero recoil using the Oktay-Kronfeld action

Jon A. Bailey, Tanmoy Bhattacharya, Rajan Gupta +5

We present the first preliminary results for the semileptonic form factor $h_{A_1}(w=1)/{\rho }_{A_j}$ at zero recoil for the $\bar{B}\to D^{\ast }\ell \bar{\nu }$ decay using lattice…