XXV DAE-BRNS High Energy Physics Symposium 2022

Analysing the S-wave charmonium decays of Bc meson

13 Dec 2022, 14:00

1h

LHC Foyer (IISER Mohali)

Poster Poster - 2

Speaker

Shantanu Sahoo (IIT Guwahati)

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.