2000/07/18 by Ronald L. Walsworth, Walsworth, Ronald L., David F. Phillips +1
Physics and Astronomy · #Atomic Physics (physics.atom-ph) #FOS: Physical sciences #General Physics (physics.gen-ph) #High Energy Physics - Experiment (hep-ex) #High Energy Physics - Phenomenology (hep-ph) #hep-ex #hep-ph #physics.atom-ph #physics.gen-ph
paper · pdf · doi:10.48550/arxiv.physics/0007062
10 pages, 5 figures. Submitted to the Proceedings of the 1999 Coral Gables Conference
arxiv created 2000/07/18 · arxiv updated 2009/11/30
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.