New Limit on the Electron Electric Dipole Moment

B. C. Regan, Eugene D. Commins, Christian J. Schmidt, and David DeMille
Phys. Rev. Lett. 88, 071805 – Published 1 February 2002
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Abstract

We present the result of our most recent search for T violation in 205Tl, which is interpreted in terms of an electric dipole moment of the electron de. We find de=(6.9±7.4)×1028ecm, which yields an upper limit |de|1.6×1027ecm with 90% confidence. The present apparatus is a major upgrade of the atomic beam magnetic-resonance device used to set the previous limit on de.

  • Received 8 August 2001

DOI:https://doi.org/10.1103/PhysRevLett.88.071805

©2002 American Physical Society

Authors & Affiliations

B. C. Regan*, Eugene D. Commins, Christian J. Schmidt, and David DeMille§

  • Physics Department, University of California, Berkeley, California 94720 and Lawrence Berkeley National Laboratory, Berkeley, California 94720

  • *Electronic address: regan@physics.berkeley.edu
  • Electronic address: commins@physics.berkeley.edu
  • Electronic address: christian.j.schmidt@de.abb.com
  • §Electronic address: david.demille@yale.edu

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Issue

Vol. 88, Iss. 7 — 18 February 2002

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