# MESON2016

2-7 June 2016
Auditorium Maximum
Europe/Warsaw timezone
14th International Workshop on Meson Production, Properties and Interaction
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# Contribution poster

Auditorium Maximum - Exhibition room

# Electromagnetic transition form factor and decays of neutral pions

• Tomáš HUSEK

## Abstract content

In this talk we will discuss two important processes of the low-energy hadron physics: the rare decay $\pi^0\to e^+ e^-$ and the Dalitz decay of $\pi^0$.

We briefly summarize experimental and theoretical results on the decay $\pi^0\to e^+e^−$. The analytical two-loop QED corrections together with the bremsstrahlung contribution beyond the soft-photon approximation are reviewed.

Finally, we present the Two-hadron saturation (THS) scenario for the PVV correlator and apply it to the processes under discussion.

The obtained results can be also used in a theoretical calculation of the hadronic light-by-light scattering contribution to the $g−2$ type experiments.