Reappraisal of the Electric Dipole Moment Enhancement Factor for Thallium

Journal Article · Fri May 20 00:00:00 EDT 2011 · Physical Review Letters

DOI:https://doi.org/10.1103/PHYSREVLETT.106.200403· OSTI ID:21538341

Nataraj, H S ^[1]; Sahoo, B K ^[2]; Das, B P ^[3]; Mukherjee, D ^[4]

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1. Cyclotron and Radioisotope Center, Tohoku University, Sendai 9808578 (Japan)
2. Theoretical Physics Division, Physical Research Laboratory, Ahmedabad 380009 (India)
3. Theoretical Astrophysics Group, Indian Institute of Astrophysics, Bangalore 560034 (India)
4. Indian Association for the Cultivation of Sciences, Kolkata 700032 (India)

The electric dipole moment (EDM) enhancement factor of atomic Tl is of considerable interest as it has been used in determining the most accurate limit on the electron EDM to date. However, its value varies from -179 to -1041 in different approximations. In view of the large uncertainties associated with many of these calculations, we perform an accurate calculation employing the relativistic coupled-cluster theory and obtain -466, which in combination with the most accurate measurement of Tl EDM [Phys. Rev. Lett. 88, 071805 (2002)] yields a new limit for the electron EDM: |d{sub e}|<2.0x10{sup -27}e cm.

• OSTI ID: 21538341
• Journal Information: Physical Review Letters, Vol. 106, Issue 20; Other Information: DOI: 10.1103/PhysRevLett.106.200403; (c) 2011 American Institute of Physics; ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ELECTRIC DIPOLE MOMENTS
ELECTRONS
RELATIVISTIC RANGE
RELATIVITY THEORY
THALLIUM
DIPOLE MOMENTS
ELECTRIC MOMENTS
ELEMENTARY PARTICLES
ELEMENTS
ENERGY RANGE
FERMIONS
LEPTONS
METALS