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Magnetic Johnson Noise Constraints on Electron Electric Dipole Moment Experiments

Technical Report ·
DOI:https://doi.org/10.2172/839794· OSTI ID:839794
Magnetic fields from statistical fluctuations in currents in conducting materials broaden atomic linewidths by the Zeeman effect. The constraints so imposed on the design of experiments to measure the electric dipole moment of the electron are analyzed. Contrary to the predictions of Lamoreaux [S.K. Lamoreaux, Phys. Rev. A60, 1717(1999)], the standard material for high-permeability magnetic shields proves to be as significant a source of broadening as an ordinary metal. A scheme that would replace this standard material with ferrite is proposed.
Research Organization:
Stanford Linear Accelerator Center (SLAC), Menlo Park, CA
Sponsoring Organization:
SC
DOE Contract Number:
AC02-76SF00515
OSTI ID:
839794
Report Number(s):
SLAC-PUB-10864
Country of Publication:
United States
Language:
English

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