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Physics Colloquium, October 23, 2001Testing the Standard Model with Trapped Radioactive IonsGuy SavardArgonne National Laboratory & University of ChicagoRecent developments in the cooling and capture of ion beams allow short-lived radioactive ions of essentially any chemical species to be captured efficiently in ion traps. These isotopes are then confined in a well-controlled environment suitable to high-precision measurements. The versatile injection allows radioactive species with the most suitable properties, such as a particular decay mode or other nuclear property enhancing or isolating the specific physical process, to be selected for study. The talk will concentrate on experiments using this approach to look at various aspects of the weak interaction through present and planned experiments with low energy beta-decay of superallowed emitters. The physics of interest (CVC, the weak vector coupling constant, scalar currents, etc...), together with the technical developments that have made these experiments possible and the present experimental status will be presented. 3.30 p.m., Smith Laboratory, Room 1005Refreshments served in Smith 1094 at 3:00 p.m. |
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