Phys. Rev. Lett. 91, 190403 (2003) [4 pages]Improved Test of Time Dilation in Special Relativity
An improved test of time dilation in special relativity has been performed using laser spectroscopy on fast ions at the heavy-ion storage-ring TSR in Heidelberg. The Doppler-shifted frequencies of a two-level transition in 7Li+ ions at v=0.064c have been measured in the forward and backward direction to an accuracy of Δν/ν=1×10-9 using collinear saturation spectroscopy. The result confirms the relativistic Doppler formula and sets a new limit of 2.2×10-7 for deviations from the time dilation factor γSR=(1-v2/c2)-1/2. © 2003 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.91.190403
DOI:
10.1103/PhysRevLett.91.190403
PACS:
03.30.+p, 06.30.Ft, 42.62.Fi
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