Optimal-observable analysis of possible new physics in $B\to D^{(\ast )}\tau {\nu }_{\tau }$

Srimoy Bhattacharya, Soumitra Nandi, Sunando Kumar Patra

We study all possible observables in $B\to D^{(\ast )}\tau {\nu }_{\tau }$ with new physics (NP), including new vector, scalar and tensor interactions, and investigate the prospects of extracting…