Nucleon Electric Dipole Moments in High-Scale Supersymmetric Models

TL;DR

This paper investigates how high-scale supersymmetric models contribute to nucleon and electron electric dipole moments, highlighting the importance of the Weinberg operator and its potential to distinguish different SUSY scenarios.

Contribution

It evaluates the impact of the CP-violating gluon Weinberg operator on nucleon EDMs within high-scale SUSY models, a novel focus in this context.

Findings

Nucleon EDMs can receive sizable contributions from the Weinberg operator.

Comparison of nucleon and electron EDMs is crucial for model discrimination.

High-scale SUSY models can produce observable EDM signals.

Abstract

The electric dipole moments (EDMs) of electron and nucleons are promising probes of the new physics. In generic high-scale supersymmetric (SUSY) scenarios such as models based on mixture of the anomaly and gauge mediations, gluino has an additional contribution to the nucleon EDMs. In this paper, we studied the effect of the $CP$-violating gluon Weinberg operator induced by the gluino chromoelectric dipole moment in the high-scale SUSY scenarios, and we evaluated the nucleon and electron EDMs in the scenarios. We found that in the generic high-scale SUSY models, the nucleon EDMs may receive the sizable contribution from the Weinberg operator. Thus, it is important to compare the nucleon EDMs with the electron one in order to discriminate among the high-scale SUSY models.