6533b7dcfe1ef96bd1271ce9
RESEARCH PRODUCT
Toward a New Test of the Relativistic Time Dilation Factor by Laser Spectroscopy of Fast Ions in a Storage Ring
S. HannemannI. HoogMatthias WeidemüllerDirk SchwalmSergei KarpukAlexander WolfG. HuberU. EisenbarthJ. LassenGuido SaathoffS. KrohnGerald Gwinnersubject
PhysicsNuclear and High Energy PhysicsCondensed Matter PhysicsAtomic and Molecular Physics and OpticsCharged particleIonLaser linewidthTheory of relativityTime dilationPhysical and Theoretical ChemistryAtomic physicsSaturation (chemistry)SpectroscopyStorage ringdescription
The frequency measurement of Doppler-shifted optical lines of ions circulating in a storage ring at high speed permits a sensitive test of the relativistic Doppler-formula and, hence, the time dilation factor γSR of special relativity. Previous measurements at the storage ring TSR with 7Li+ at v = 0.065c gave a new, improved limit, but were hampered by the large observed linewidth, exceeding the natural width 15-fold. Recently we have identified the broadening to be caused by velocity-changing processes in the storage ring. Saturation spectroscopy has proven to be largely immune against these effects and has yielded linewidths only a few MHz larger than the natural one. This is the major ingredient for an improved test of γSR, which is now under way.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2003-01-01 | Hyperfine Interactions |