Diagnosing New Physics with LUV and LFV B Decays

An important prediction of the standard model is the universality of the gauge interactions of the three generation of charged leptons. Violation of this universality would be a clean evidence of new physics (NP) beyond the standard model. In recent times anomalies in measurements of certain $B$ decays indicate violation of lepton universality (LUV). I will discuss how one may probe this LUV new physics via related decays and distributions. I will point out that LUV new physics can often lead to lepton flavor violation (LFV) and I will discuss some promising decays to look for LFV new physics.