Joint LHCb--Belle II Prospects to Constrain New Physics in $B\to D^{(\ast )}\tau \nu$

Johannes Albrecht, Florian Bernlochner, Marco Colonna +5

Semileptonic $b\to c\tau {\bar{\nu }}_{\tau }$ decays are powerful probes of non-Standard-Model effects within an effective-field-theory (EFT) framework, but fully exploiting them in current and fu…