Study on the radiative decays of $h_c$ via intermediate meson loops model

Recently, the BESIII Collaboration reported two new decay processes $h_c(1P)\to \gamma \eta$ and $\gamma {\eta }^{\mathrm{\prime }}$. Inspired by this measurement, we propose to study the radiative decays of $h_c$ via intermediate charmed meson loops in an effective Lagrangian approach. With the acceptable cutoff parameter range, the calculated branching ratios of $h_c(1P)\to \gamma \eta$and$\gamma \eta^\prime$areordersof$10^{-4}\sim 10^{-3}$and$10^{-3} \sim 10^{-2}$,respectively\mathrm{.}Theratio$R_{h_c}= $\mathcal{B}$( h_c\to \gamma \eta )/$\mathcal{B}$( h_c\to \gamma \eta^\prime )$ can reproduce the experimental measurements with the commonly acceptable $\alpha$ range. This ratio provide us some information on the $\eta -{\eta }^{\mathrm{\prime }}$ mixing, which may be helpful for us to test SU(3)-flavor symmetries in QCD.