The existence of a nonzero permanent electric dipole moment of the neutron would reveal a new source of CP violation and might shed light on the origin of the matter/antimatter asymmetry of the Universe. The sensitivity of future experiments using intense sources of neutrons will probe new physics well beyond the TeV scale.
A discovery of an nEDM or a further improved limit will markedly and...
129Xe is a diamagnetic atom that provides a nuclear spin system to probe P-odd/T-odd physics that is complementary to that in other systems. We have been pursuing 129Xe EDM measurements with 3He comagnetometry, most recently using SQUIDS to detect free precession of both species and have set a new upper limit and have a roadmap for significant future improvements. I will discuss the role of...