  The phenomenological relativistic quark model (RQM) has been employed to
obtain the masses of ground state pseudo scalar and vector $c\bar{b}$ states.
In the frame work of RQM a study of M1 radiative decays of $c\bar{b}$ has been
made. The Hamiltonian used in the investigation has confinement potential and
confined one gluon exchange potential (COGEP). An overall agreement is obtained
with the experimental masses and decay widths. Calculated values are compared
with other theoretical models.
