Electron and neutron electric dipole moment in the 3-3-1 model with heavy leptons

TL;DR

This paper calculates the electron and neutron electric dipole moments within a specific 3-3-1 model featuring heavy leptons, focusing on CP violation sources and their experimental constraints.

Contribution

It introduces a detailed calculation of EDMs in the 3-3-1 model considering a single physical CP-violating phase, aligning theoretical predictions with experimental bounds.

Findings

The CP-violating phase must be smaller than 10^{-6} to match experimental data.

The model predicts specific EDM values for electron and neutron.

The analysis constrains the parameter space of the 3-3-1 model with heavy leptons.

Abstract

We calculate the electric dipole moment for the electron and neutron in the framework of the 3-3-1 model with heavy charged leptons. We assume that the only source of $CP$ violation arises from a complex trilinear coupling constant and the three complex vacuum expectation values. However, two of the vacua phases are absorbed and the other two are equal up to a minus sign. Hence only one physical phase survives. In order to be compatible with the experimental data this phase has to be smaller than $10^{-6}$.