Searches for Lorentz and CPT Violation with Confined Particles
Yunhua Ding
TL;DR
This paper reviews recent experiments using Penning traps to search for Lorentz and CPT symmetry violations, providing new limits on theoretical coefficients within the Standard-Model Extension framework.
Contribution
It offers a comprehensive overview of experimental bounds on Lorentz and CPT violation from Penning trap measurements, connecting frequency shifts to fundamental symmetry tests.
Findings
New limits on Lorentz-violating coefficients derived from Penning trap data.
Relating frequency shifts to charge-to-mass and magnetic moment comparisons.
Enhanced constraints on fundamental symmetry violations in particle physics.
Abstract
An overview of recent progress on searches for Lorentz- and CPT-violating signals with confined particles and antiparticles in Penning traps is presented. In the context of the Standard-Model Extension (SME), leading-order shifts in the cyclotron and anomaly frequencies of a confined particle and antiparticle due to Lorentz and CPT violation are provided. The two frequencies are then related to comparisons of charge-to-mass ratios and magnetic moments between particles and antiparticles. Applying reported results from Penning-trap experiments leads to new limits on various coefficients for Lorentz violation.
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Taxonomy
TopicsNoncommutative and Quantum Gravity Theories · Quantum Mechanics and Applications · Quantum and Classical Electrodynamics