Prospects for a Third Generation ACME Search for an Electron Electric Dipole Moment
Abstract
The observation of an electron electric dipole moment (eEDM) would reveal new sources of time-reversal symmetry violation and indicate physics beyond the Standard Model. The most stringent upper limit on the eEDM, |de|<9.4 x10-29 ecm, was set by the first generation of the ACME experiment by means of measuring electron spin precession in a beam of thorium monoxide. Here, we present studies for further improvements to the ACME experiment, with the eventual goal of sensitivity at the 10-30 ecm level, roughly 1 order of magnitude smaller than the currently running second generation experiment. The methods we discuss focus primarily on improving statistics, and include a magnetic lens to focus the molecular beam and optical cycling to improve detection.
- Publication:
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APS Division of Atomic, Molecular and Optical Physics Meeting Abstracts
- Pub Date:
- May 2018
- Bibcode:
- 2018APS..DMPM01093W