The radiative corrections to double-Dalitz decays revisited

Understand

In this study, we revisit and complete the full next-to-leading order corrections to pseudoscalar double-Dalitz decays within the soft-photon approximation.

• Comparing to the previous study, we find small differences, which are nevertheless relevant for extracting information about the pseudoscalar transition form factors.
• Concerning the latter, these processes could offer the opportunity to test them-for the first time-in their double-virtual regime