Comments on ISR method in modern experiment and influence of final state radiation

Abstract

We study the effect of final state radiation in the process $e^{+}+e^{-}\to \bar{p}+p$, in the kinematical conditions of BaBar and BESIII experiment. We show that this effect could be large, in particular in the low $x$ region ($x$ is the photon energy fraction) and should be taken into account.

8 pages, 5 figures