The electromagnetic form factors of $\Sigma$ and ${\Sigma }^0\to \Lambda$ transition in the timelike region

Cheng Chen, Bing Yan, Bing-Wei Long +1

We investigate the $e^{+}{e}^{-}\to \Sigma \bar{\Sigma }$ and $e^{+}{e}^{-}\to \Lambda {\bar{\Sigma }}^0$ reactions within the extended vector meson dominance model. In addition to the ground state mesons $\rho$ and $\omega$, we co…