Physics – Atomic Physics
Scientific paper
2000-07-18
AIP Conf.Proc.539:119-129,2000
Physics
Atomic Physics
11 pages, 5 figures. To appear in the Proceedings of the 3rd International Symposium on Symmetries in Subatomic Physics
Scientific paper
10.1063/1.1330910
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.
Bear David
Humphrey Marc
Mattison Edward M.
Phillips David F.
Stoner Richard E.
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