Speaker
Description
This talk will discuss the semi-leptonic and non-leptonic $B_c$ meson decay into S-wave charmonium and present our results. This analysis has been done in the non-relativistic QCD(NRQCD) framework. We used Heavy-Quark Spin Symmetry (HQSS) to relate the $B_c\to \eta_c$ to the $B_c \to J/\psi$ form factors. Furthermore, the information on $B_c\to \eta_c$ form factors were extracted from available information on $B_c\to J/\psi$ form factors from the lattice. We then predict the observables R(J/$\psi$) and R($\eta_c$) along with their NP predictions for these observables. Several other predictions are related to $e^+e^-$, Higgs, and Z- decay to single or double charmonium and radiative modes involving J/$\psi$ and(or) $\eta_c$ also presented here.
| Session | Quark and Lepton Flavour Physics |
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