Examination of T/CP Invariance in the e+e- --> tau+ tau- Reaction

TL;DR

This paper proposes a method to test T/CP invariance in tau lepton production and decay at B-Factory experiments, aiming for high sensitivity without needing large data samples.

Contribution

It introduces a novel triple-momentum correlation technique to examine T/CP invariance in tau lepton reactions.

Findings

Potential for unprecedented sensitivity in T/CP tests.

Method applicable during ongoing B-Factory experiments.

No high integrated luminosity required.

Abstract

We propose a method to examine the T/CP invariance of the heaviest lepton, tau, by means of a triple-momentum correlation for the reaction e^+e^- -->tau^+tau^-, tau --> e/mu nu nubar during the course of the B-Factory experimental program. An unprecedented high sensitivity could be obtained without requiring a high integrated luminosity.