Momentum-dependence of $\rho -\omega$ mixing in the pion vector form factor and its effect on $(g-2{)}_{\mu }$

Yun-Hua Chen, Meng-Ge Qin

The inclusion of the $\rho -\omega$ mixing effect is essential for a precise description of the pion electromagnetic form factor in the $e^{+}{e}^{-}\to {\pi }^{+}{\pi }^{-}$ process, which quantifies…