Penning-Trap Searches for Lorentz and CPT Violation

Abstract

An overview of recent progress on testing Lorentz and CPT symmetry using Penning traps is presented. The theory of quantum electrodynamics with Lorentz-violating operators of mass dimensions up to six is summarized. Dominant shifts in the cyclotron and anomaly frequencies of the confined particles and antiparticles due to Lorentz and CPT violation are derived. Existing results of the comparisons of charge-to-mass ratios and magnetic moments involving protons, antiprotons, electrons, and positrons are used to constrain various coefficients for Lorentz violation.

20 pages, accepted for publication in Symmetry

References in corpus (8)

• Electrodynamics with Lorentz-violating operators of arbitrary dimension
• Riemann-Finsler geometry and Lorentz-violating kinematics
• Preferred-Frame and CP-Violation Tests with Polarized Electrons
• Lorentz-violating spinor electrodynamics and Penning traps
• Direct high-precision measurement of the magnetic moment of the proton
• Laboratory tests of Lorentz and CPT symmetry with muons
• Classical-physics applications for Finsler $b$ space
• Lorentz and CPT tests with charge-to-mass ratio comparisons in Penning traps