$X(1835)$ and the New Resonances $X(2120)$ and $X(2370)$ Observed by the BES Collaboration

Jia-Feng Liu, Gui-Jun Ding, Mu-Lin Yan

We calculate the decay widths of both the second and the third radial excitations of $\eta$ and ${\eta }^{\prime }$ within the framework of ${}^3{P}_0$ model. After comparing the theoretical decay width…