Formula_19236

\[\left\langle p^{\prime} \mid j^{\mu}(0) p\right\rangle=\left(4 p_{0} p_{0}^{\prime}\right)^{-1} \bar{u}\left(p^{\prime}\right)\left\{\gamma^{\mu} F_{1}\left(q^{2}\right)+i \sigma^{\mu \nu} q_{v} F_{2}\left(q^{2}\right)\right\} u(p),\]