Rescattering Effect and Near Threshold Enhancement of $p\bar{p}$ System

G. Y. Chen, H. R. Dong, J. P. Ma

We study the observed enhancement of a $p\bar{p}$ system near the threshold in the process $J/\psi \to \gamma p\bar{p}$ and $e^{+}{e}^{-}\to p\bar{p}$. From early studies the enhancement can be exp…