Two-Photon, Two-gluon and Radiative Decays of Heavy Flavoured Mesons

Arpit Parmar, Bhavin Patel, P C Vinodkumar

Here we present the two-photon and two-gluon decay widths of the S-wave (${\eta }_{Q\in c,b}$) and P-wave (${\chi }_{Q\in c,bJ}$) charmonium and bottonium states and the radiative transition d…