Footprints of New Physics in the Angular Coefficients of B → D∗ s(→ Dsπ,Dsγ)l+l− decays

Abstract

Motivated by the observed anomalies in b → sμ+μ− transition which hints towards new physics, we investigate Bc → D∗ sμ+μ− decay using the recent global fit analysis of b → sℓ+ℓ− quark level trnsition. More precisely for the said decay, the NP has been analysed using the full differential angular distribution when D∗ s cascades into Dsπ and Dsγ. The said four body decay has been analyzed in the framework of Standard Model and in the model independent scenarios. To identify the effects of NP via these decays, we choose several q2 dependent observables. Our results show that most of the physical observables are sensitive to NP couplings. Future measurements of the angular observables in these decays, both at current and future high energy colliders, will be useful to clarify the structure of New Physics.