CP violation in tau decays

TL;DR

This paper discusses the potential for observing CP violation in tau lepton decays, exploring new physics possibilities and addressing challenges in predicting direct CP violation due to hadronic interactions.

Contribution

It highlights the importance of tau decays for studying CP violation and proposes methods to handle hadronic final state interactions for accurate predictions.

Findings

Identifies tau decays as a promising avenue for CP violation studies.

Discusses strategies to account for hadronic interactions in CP violation predictions.

Suggests potential new physics insights from tau decay CP violation measurements.

Abstract

CP violation of the charged lepton sector has not been found yet. Tau is a unique charged lepton which can decay into hadrons. In this talk, we argue what kind of new physics can be studied with CP violation of tau lepton decays. We also disucuss how to handle hadronic final state interactions for a prediction of the direct CP violation.