Triple-product asymmetry in the radiative two-pion tau decay

Cheng Chen, Chun-Gui Duan, Zhi-Hui Guo

In this work, we perform a detailed study of the ${\tau }^{-}\to {\pi }^{-}{\pi }^0\gamma \nu$ decay process within the resonance chiral theory. We pay special attention to the triple-product asymmetry in the…