Speaker
Lin Qiu
(Institute of High Energy Physics, CAS)
Description
The $\eta(1295)$ and $\eta(1405/1475)$ are assumed to be the candidates of the first radially-excited states of $\eta-\eta'$ and even the pseudo-scalar glueball. Ragarding to the recent BESIII $J/\psi\rightarrow\gamma K^0_S\bar{K}^0_S\pi^0$, we perform a dispersive analysis in the Khuri-Trieman framework which incoporates both the two- and three-body unitarity in the final state interactions. And then, the invariant mass spectrums are learned to shed light on the nature of these pseudo-scalar states.
Primary authors
Lin Qiu
(Institute of High Energy Physics, CAS)
Prof.
Qiang Zhao
(Institute of High Energy Physics, CAS)
