Two body final states production in electron-positron annihilation and their contributions to $(g-2{)}_{\mu }$

Shi-Jia Wang, Zhen Fang, Ling-Yun Dai

In this paper, we study the processes of $e^{+}{e}^{-}$ annihilation into two body final states, either two pseudoscalar mesons or one meson with a photon. The hadronic vacuum polari…