Testing Lorentz and CPT Symmetries in Penning Traps

TL;DR

This paper investigates potential violations of Lorentz and CPT symmetries using Penning trap experiments, analyzing how these fundamental symmetries could be tested through modifications in the Dirac equation and anomaly frequency measurements.

Contribution

It introduces a framework for constraining Lorentz- and CPT-violating coefficients up to mass-dimension six using Penning-trap data.

Findings

Constraints on Lorentz-violating coefficients derived from experimental data

Sensitivity estimates for detecting symmetry violations in Penning traps

Extension of the Standard-Model Extension to nonminimal operators

Abstract

A modified Dirac equation with general Lorentz- and CPT-violating operators in the electromagnetic field is studied. Constraints on and possible sensitivities to Lorentz-violating coefficients in the nonminimal sector up to mass-dimension six can be obtained by analyzing Penning-trap results involving anomaly frequencies.