New Clock Comparison Searches for Lorentz and CPT Violation

We present two new measurements constraining Lorentz and CPT violation using the Xe-129 / He-3 Zeeman maser and atomic hydrogen masers. Experimental investigations of Lorentz and CPT symmetry provide important tests of the framework of the standard model of particle physics and theories of gravity....

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Bibliographic Details
Published in:arXiv.org 2000-07
Main Authors: Walsworth, Ronald L, Bear, David, Humphrey, Marc, Mattison, Edward M, Phillips, David F, Stoner, Richard E, Vessot, Robert F C
Format: Article
Language:English
Subjects:
Hydrogen masers
Masers
Particle physics
Quarks
Standard model (particle physics)
Symmetry
Online Access:Get full text
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Summary:We present two new measurements constraining Lorentz and CPT violation using the Xe-129 / He-3 Zeeman maser and atomic hydrogen masers. Experimental investigations of Lorentz and CPT symmetry provide important tests of the framework of the standard model of particle physics and theories of gravity. The two-species Xe-129 / He-3 Zeeman maser bounds violations of CPT and Lorentz symmetry of the neutron at the 10^-31 GeV level. Measurements with atomic hydrogen masers provide a clean limit of CPT and Lorentz symmetry violation of the proton at the 10^-27 GeV level.
ISSN:2331-8422
DOI:10.48550/arxiv.0007063