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Investigating Lorentz and CPT Symmetry with Antihydrogen

2002/09/23 by Neil Russell, Russell, Neil
Physics and Astronomy · #Atomic and Subatomic Physics Research #Dark Matter and Cosmic Phenomena #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #Quantum, superfluid, helium dynamics #hep-ph

paper · pdf · doi:10.48550/arxiv.hep-ph/0209251

10 pages, latex, invited talk at XIVth Rencontres de Blois on Matter-Antimatter Asymmetry, Chateau de Blois, France, 16-22 June 2002

arxiv created 2002/09/23 · openalex publication_date 2002/09/23 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

This talk discusses theoretical aspects of tests of CPT and Lorentz Symmetry that will in principle be possible with trapped antihydrogen. The framework is the standard-model extension, which admits minuscule violations of CPT and Lorentz symmetry in a general manner without giving up other features of the standard model of particle physics. Spectroscopic transitions in hydrogen and antihydrogen that exhibit leading-order effects are identified. Such comparisons of spectral frequencies in antimatter with the corresponding frequencies in regular matter will bound parameter combinations that are not accessible with regular-matter atoms alone.

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