Magnetic Johnson Noise Constraints on Electron Electric Dipole Moment Experiments

Technical Report · Thu Nov 18 00:00:00 EST 2004

DOI:https://doi.org/10.2172/839794· OSTI ID:839794

Munger, C

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: SLAC National Accelerator Lab., Menlo Park, CA (United States)
• Sponsoring Organization: USDOE Office of Science (SC)
• DOE Contract Number: AC02-76SF00515
• OSTI ID: 839794
• Report Number(s): SLAC-PUB-10864; TRN: US0503282
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ELECTRIC DIPOLE MOMENTS
ELECTRONS
FERRITE
FLUCTUATIONS
MAGNETIC FIELDS
SHIELDS
ZEEMAN EFFECT
MEASURING METHODS
MATERIAL SUBSTITUTION