$$\omega \rightarrow 3\pi $$ω→3π and $$\omega \pi ^{0}$$ωπ0 transition form factor revisited

In light of recent experimental results, we revisit the dispersive analysis of the $$\omega \rightarrow 3\pi $$ decay amplitude and of the $$\omega \pi ^0$$ transition form factor. Within the framework of the Khuri–Treiman equations, we show that the $$\omega \rightarrow 3\pi $$ Dalitz-plot parameters obtained with a once-subtracted amplitude are in agreement with the latest experimental determination by BESIII. Furthermore, we show that at low energies the $$\omega \pi ^0$$ transition form factor obtained from our determination of the $$\omega \rightarrow 3\pi $$ amplitude is consistent with the data from MAMI and NA60 experiments.