Search for an Electric Dipole Moment of the Electron

Experimental upper limits on the size of an EDM for several elementary particles have been found. A summary of these limits is tabulated. Garwin and Lederman have suggested that the method used in searchrng for the muon EDM could be extcnded to higher accuracy for the electron. The anomalous magnetic dipole moment experiment of Schupp et al. is ani experiment of this type. It is shown that this experiment does yield a new upper limit on the size of the EDM of the electron. Extensions of the same experiment, which are expected to considerably increase sensitivity, are described. (A.C.)