In light of recent experimental results, we revisit the dispersive analysis of the ω→3π decay amplitude and of the ωπ0 transition form factor. Within the framework of the Khuri-Treiman equations, we show that the ω→3π 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 ωπ0 transition form factor obtained from our determination of the ω→3π amplitude is consistent with the data from MAMI and NA60 experiments.
@article{arxiv.2006.01058,
title = {$\omega \to 3\pi$ and $\omega\pi^{0}$ transition form factor revisited},
author = {M. Albaladejo and I. Danilkin and S. Gonzalez-Solis and D. Winney and C. Fernandez-Ramirez and A. N. Hiller Blin and V. Mathieu and M. Mikhasenko and A. Pilloni and A. Szczepaniak},
journal= {arXiv preprint arXiv:2006.01058},
year = {2020}
}