Scrutinizing new physics of $B_d\to \phi (\eta^{(')},\pi, \omega)$ decay modes

We inspect the exclusive hadronic decay modes $B_d\to \phi (\eta^{(')}, \pi, \omega)$, induced by quark level transition as $b\to d$ $(\Delta S=0)$, in vector like down quark model. As these decay modes insist highly suppressed followed by the predicted branching fraction $\mathcal{O}(10^{-9})$ which reflects to scrutinize physics beyond the standard model. We constrain the new parameter space inferred from experimental limits on leptonic $B_d\to \ell \ell(\ell=e, \mu, \tau)$ and nonleptonic decay modes $B_d \to \eta' \pi^0$ and $B_u\to \rho^- \eta'$. We then check the new physics contributions can have significant impact on the prominent observable so called branching ratio of $B_d\to \phi (\eta^{(')},\pi, \omega)$ processes.