New experimental limit on the electron electric dipole moment

Journal Article · Mon Nov 05 04:00:00 EST 1990 · Physical Review Letters; (USA)

DOI:https://doi.org/10.1103/PhysRevLett.65.2347· OSTI ID:6144080

Abdullah, K; Carlberg, C; Commins, E D; Gould, H; Ross, S B ^[1]

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1. Chemical Sciences Division, Building 71-259, Lawrence Berkeley Laboratory, 1 Cyclotron Road, Berkeley, CA (USA) Department of Physics, University of California, Berkeley, CA (USA)

A search for the electron electric dipole moment {ital d}{sub {ital e}} is carried out with two counterpropagating beams of ground-state {sup 205}Tl. The experiment employs atomic-beam magnetic resonance with separated oscillatory fields combined with laser state selection and fluorescence detection. Extensive tests were made for possible systematic effects. The result for the atomic electric dipole moment is {ital d}{sub {ital a}}=(1.6 {plus minus}5.0){times}10{sup {minus}24} {ital e} cm, where the uncertainty includes equal statistical and systematic contributions. This yields {ital d}{sub {ital e}}=({minus}2.7{plus minus}8.3) {times}10{sup {minus}27} {ital e} cm, assuming the ratio {ital d}{sub {ital a}}/{ital d}{sub {ital e}}={minus}600.

• DOE Contract Number: AC03-76SF00098
• OSTI ID: 6144080
• Journal Information: Physical Review Letters; (USA), Journal Name: Physical Review Letters; (USA) Vol. 65:19; ISSN PRLTA; ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

645101* -- High Energy Physics-- Particle Interactions & Properties-Experimental-- Electromagnetic Interactions & Properties
651920 -- Nuclear Properties & Reactions
A=190-219
Experimental
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ATOMIC BEAMS
BEAMS
DIPOLE MOMENTS
ELECTRIC DIPOLE MOMENTS
ELECTRIC MOMENTS
ELECTROMAGNETIC RADIATION
ELECTRONS
ELEMENTARY PARTICLES
ERRORS
FERMIONS
HEAVY NUCLEI
ISOTOPES
LASER RADIATION
LEPTONS
LIMITING VALUES
MAGNETIC RESONANCE
NUCLEI
ODD-EVEN NUCLEI
RADIATIONS
RESONANCE
STABLE ISOTOPES
THALLIUM 205
THALLIUM ISOTOPES
USES