Measuring CP-violating phases through studying the polarization of the final particles in $\mu \to eee$

TL;DR

This paper proposes that analyzing the polarization of final particles in the muon decay process +e-e+ can reveal information about CP-violating phases in the effective Lagrangian, aiding understanding of lepton flavor violation.

Contribution

It introduces a method to extract CP-violating phases from polarization measurements in +e-e+ decay, linking polarization observables to underlying CP-violation.

Findings

Polarizations of final particles encode CP-violating phase information.

Method provides a new way to probe CP-violation in lepton flavor violating decays.

Potential to distinguish different CP-violating scenarios.

Abstract

It is shown that the polarizations of the final particles in $\mu^+\to e^+e^-e^+$ provide us with information on the CP-violating phases of the effective Lagrangian leading to this Lepton Flavor Violating (LFV) decay.