Abstract

The possibility of performing weak interaction experiments usingspectroscopic techniques is discussed. In such an experiment, a laser is tunedto an electronic transition of the daughter, and a signal whose strength isproportional to the number of recoil atoms is monitored, such as fluorescence,absorption, or anisotropy induced in radiation emitted in a subsequent nucleardecay. As a specific example of this technique, we consider measuring theangular correlation between the momenta of the electron and the antineutrinoemitted in the decay/sup 85/Kr/r arrow//sup 85/Rb/sup m/+..beta../sup /minus//+/nu/bar //using the laser-induced nuclear orientation technique. Such anexperiment is currently under way.

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