Bulletin of the American Physical Society
55th Annual Meeting of the APS Division of Atomic, Molecular and Optical Physics
Monday–Friday, June 3–7, 2024; Fort Worth, Texas
Session A01: DAMOP Prize Session - Ramsey Prize Winner & Allis Prize Winner
8:00 AM–10:15 AM,
Tuesday, June 4, 2024
Room: Ballroom B
Chair: Ana Rey, University of Colorado, Boulder
Abstract: A01.00004 : Ramsey Prize Talk: New Generation Measurements of the Electron's Electric and Magnetic Dipole Moments*
9:15 AM–9:45 AM
Presenter:
Gerald Gabrielse
(Northwestern University)
Author:
Gerald Gabrielse
(Northwestern University)
Meanwhile, in a separate measurement using entirely different methods, special relativity and quantum-limited detection are the new ideas that will propel a new generation measurement of the electron’s other moment -- its magnetic moment -- and also that of the positron. The two spin energy states and the two lowest cyclotron states of one electron or positron trapped at crogenic temperatures form qubits whose state can be read out using a quantum-limited SQUID detector via a QND coupling provided by special relativity. The first goal is measuring the electron magnetic moment [4] 10 times more accurately, to make the morst precise test of the most precise prediction of the SM, and to set stringent BSM limits. The second goal is measuring the positron magnetic moment [5] 200 times more accurately, to make the most precise lepton test of the SM’s fundamental CPT invariance. A third goal is to tp provide greater sensitivity to dark photons than the 75 times improved sensitity that we recently demonstrated [6].
*Support is from NSF, Sloan, Moore, Templeton and the DOE SQMS Center.
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