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Colloquium Seminar: Testing Lorentz invariance: The most precise measurement of relativistic time dilation

Speaker: Gerald Gwinner, University of Manitoba

Location: Auditorium

Time: 14:00

I will present concluding results from a series of Ives-Stilwell-type experiments at the TSR and ESR heavy ion storage rings. Using collinear laser spectroscopy on Li+ ions stored at speeds ranging from 0.03 to 0.34 c, and achieving absolute frequency accuracies at the 10^(-10) level, we have verified the relationship between the velocity beta and the time dilation factor gamma to within +/- 2.3 x 10^(-9). This puts limits on Lorentz-violating test theories.