The Nucleon Electric Dipole Form Factor From Dimension-Six Time-Reversal Violation

TL;DR

This paper calculates the nucleon electric dipole form factor resulting from dimension-six time-reversal violating interactions in quark-gluon dynamics using two-flavor chiral perturbation theory at one loop.

Contribution

It provides the first calculation of the nucleon electric dipole form factor from dimension-six T-violation within chiral perturbation theory.

Findings

Quantifies the electric dipole form factor contributions from quark and gluon dipole moments.

Establishes a theoretical framework for connecting T-violation to observable nucleon properties.

Lays groundwork for future experimental constraints on T-violation parameters.

Abstract

We calculate the electric dipole form factor of the nucleon that arises as a low-energy manifestation of time-reversal violation in quark-gluon interactions of effective dimension 6: the quark electric and chromoelectric dipole moments, and the gluon chromoelectric dipole moment. We use the framework of two-flavor chiral perturbation theory to one loop.