Study of the $h_c$($1^1{P}_1$) meson via $\psi (2S)\to {\pi }^0{h}_c$ decays at BESIII

BESIII Collaboration, M. Ablikim, M. N. Achasov +549

Using 448 million $\psi (2S)$ events, the spin-singlet $P$-wave charmonium state $h_c$(1${}^1{P}_1$) is studied via the $\psi (2S)\to {\pi }^0{h}_c$ decay followed by the $h_c\to \gamma {\eta }_c$ tra…