CP violation in chargino production in e+e- collisions

TL;DR

This paper investigates CP-violating effects in chargino pair production at electron-positron colliders, demonstrating that CP-odd asymmetries sensitive to certain phases can reach a few percent, with effects appearing only at the one-loop level.

Contribution

It provides the first analysis of one-loop CP-violating effects in non-diagonal chargino production, highlighting the sensitivity to mu and A_t phases.

Findings

CP-odd asymmetries can be of the order of a few percent.

Effects only appear at the one-loop level.

Sensitivity to phases of mu and A_t parameters.

Abstract

We present the analysis of CP-violating effects in non-diagonal chargino pair production in e+e- collisions. These effects appear only at the one-loop level. We show that CP-odd asymmetries in chargino production are sensitive to the phases of mu and A_t parameters and can be of the order of a few %.