K_L -> pi pi e e in Chiral Perturbation Theory

TL;DR

This paper analyzes the rare decay K_L -> pi pi e e using chiral perturbation theory at the one-loop level, providing theoretical insights into its properties.

Contribution

It offers a detailed one-loop chiral perturbation theory analysis of the rare decay K_L -> pi pi e e, which was recently observed.

Findings

The decay amplitude calculated at one-loop level.

Predictions for decay rates consistent with experimental observations.

Insights into chiral dynamics in rare kaon decays.

Abstract

The rare decay K_L -> pi pi e e that has recently been observed by KTeV is analyzed in chiral perturbation theory at the one-loop level.