Speaker
Description
Measurements of the branching ratios of $B \to D^{(*)}\tau\nu / B \to D^{(*)}\ell\nu$ by the BaBar, Belle, and LHCb collaborations consistently point towards an abundance of taus compared to channels with light leptons at the 3-4 sigma level. This $R(D^{(*)})$ anomaly could imply TeV scale new physics. In this contribution, I will first review several new physics interpretations of the $R(D^{(*)})$ anomaly. Then, I will present some exciting new physics predictions; $\Lambda_b$ semi-leptonic decays, $\Upsilon$ leptonic decays, and neutron electric dipole moment. It will be shown that these measurements (with polarization observables in $B \to D^{(*)}\tau\nu$) could confirm the new physics contribution to $R(D^{(*)})$ and distinguish the models of several new physics scenarios.
