1999/08/30 by Alan Kostelecky, Charles Lane · 1 citation
Physics and Astronomy · #hep-ph
paper · pdf · doi:10.1103/physrevd.60.116010
published as Phys.Rev.D60:116010,1999 · accepted for publication in Physical Review D; scheduled for issue of December 1, 1999
arxiv created 1999/08/30 · arxiv updated 2009/11/30
Constraints from clock-comparison experiments on violations of Lorentz and CPT symmetry are investigated in the context of a general Lorentz-violating extension of the standard model. The experimental signals are shown to depend on the atomic and ionic species used as clocks. Certain experiments usually regarded as establishing comparable bounds are in this context sensitive to different types of Lorentz violation. Some considerations relevant to possible future measurements are presented. All these experiments are potentially sensitive to Lorentz-violating physics at the Planck scale.