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What can we learn from EDM searches - and how?

Tim Chupp, University of Michigan, Ann Arbor
Thursday, October 19, 2023 - 3:30pm
CENPA Conference Room

The permanent electric dipole moment or EDM is a separation of charge along the angular momentum of a system and violates parity (P) and time-reversal (T) symmetry. Experimental motivations have evolved since the first neutron EDM experiment aimed at probing parity violation and now focus on revealing beyond-Standard-Model CP violation that could clarify the origin of the matter-antimatter asymmetry of the universe. Since that first experiment a host of beautiful experiments with neutrons, atoms, molecules, and elementary particles have revealed ... nothing, that is, upper limits in every case. Nevertheless, the excitement and experimental activity are mounting with new techniques and new systems that probe new-physics mass scales beyond those accessible to LHC searches. The first half of my talk will describe the landscape of the next generation of EDM experiments, and the second half will address the experimental challenges - and solutions to gain the next order of magnitude sensitivity to the neutron EDM at the Los Alamos Ultra-cold neutron source.

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