Testing Lorentz and CPT symmetry with hydrogen masers

Details Testing Lorentz and CPT symmetry with hydrogen masers Testing Lorentz and CPT symmetry with hydrogen masers

2001-03-22

arxiv.org/abs/physics/0103068v1

Phys.Rev.A68:063807,2003

Physics

Atomic Physics

26 pages, 16 figures

Scientific paper

10.1103/PhysRevA.68.063807

We present details from a recent test of Lorentz and CPT symmetry using hydrogen masers. We have placed a new limit on Lorentz and CPT violation of the proton in terms of a recent standard model extension by placing a bound on sidereal variation of the F = 1 Zeeman frequency in hydrogen. Here, the theoretical standard model extension is reviewed. The operating principles of the maser and the double resonance technique used to measure the Zeeman frequency are discussed. The characterization of systematic effects is described, and the method of data analysis is presented. We compare our result to other recent experiments, and discuss potential steps to improve our measurement.

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