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Progress toward the electron electric-dipole-moment search: Theoretical study of the PbF molecule

K. I. Baklanov, A. N. Petrov, A. V. Titov, and M. G. Kozlov
Phys. Rev. A 82, 060501(R) – Published 8 December 2010

Abstract

We report ab initio relativistic correlation calculations of potential curves and spectroscopic constants for the four lowest-lying electronic states of lead monofluoride. We also calculated parameters of the spin-rotational Hamiltonian for the ground 2Π1/2 and the first excited A 2Σ1/2+ states including P,T-odd and P-odd terms. In particular, we have obtained hyperfine constants of the Pb207 nucleus. For the 2Π1/2 state, A=6859.6 MHz, A=9726.9 MHz and for the A 2Σ1/2+ state, A=1720.8 MHz, A=3073.3 MHz. Our values of the ground-state hyperfine constants are in good agreement with previous theoretical studies. We discuss and explain seeming disagreement with the recent experimental data of the sign of the constant A. The effective electric field on the electron Eeff, which is important in the planned experiment for searching for the electric dipole moment of the electron, is found to be 3.3×1010V/cm.

  • Received 11 October 2010

DOI:https://doi.org/10.1103/PhysRevA.82.060501

©2010 American Physical Society

Authors & Affiliations

K. I. Baklanov1, A. N. Petrov1,2,*, A. V. Titov2, and M. G. Kozlov2

  • 1Institute of Physics, Saint Petersburg State University, Saint Petersburg, Petrodvoretz 198904, Russia
  • 2Petersburg Nuclear Physics Institute, Gatchina, Leningrad District 188300, Russia

  • *anpetrov@pnpi.spb.ru

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Issue

Vol. 82, Iss. 6 — December 2010

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