Improved measurement of the branching fraction of
$h_{c}\rightarrow\gamma\eta^\prime/\eta$ and search for
$h_{c}\rightarrow\gamma\pi^0$
Improved measurement of the branching fraction of
$h_{c}\rightarrow\gamma\eta^\prime/\eta$ and search for
$h_{c}\rightarrow\gamma\pi^0$
The processes $h_c\rightarrow\gamma P(P = \eta^\prime,~\eta,~\pi^{0}))$ are studied with a sample of $(27.12\pm0.14)\times10^{8}$ $\psi(3686)$ events collected by the BESIII detector at the BEPCII collider. The branching fractions of $h_c\rightarrow\gamma\eta^\prime$ and $h_c\rightarrow\gamma\eta$ are measured to be $(1.40\pm0.11\pm0.04\pm0.10)\times10^{-3}$ and $(3.77\pm0.55\pm0.13\pm0.26)\times10^{-4}$, respectively, where the first uncertainties are statistical, the second systematic, and the …