Speaker
Judd Harrison
(University of Glasgow)
Description
We present the results of HPQCD's recent calculation of the $B_c \to J/\psi$ semileptonic form factors and $R(J/\psi)$ for the first time from lattice QCD using the heavy-HISQ method. We also present results from lattice QCD, using the heavy-HISQ method, for the $B_s \to D_s^*$ semileptonic form factors and $R(D_s^*)$. We give a value for $|V_{cb}|$ computed using our results for the full kinematic range of $B_s \to D_s^*$ decay along with LHCb measurements. We also give a comparison between our results and experimental measurements of the differential shape of the decay rate and related parameters.
Primary authors
Judd Harrison
(University of Glasgow)
Christine Davies
(University of Glasgow)
