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Title: Communication: Theoretical study of ThO for the electron electric dipole moment search

Abstract

An experiment to search for the electron electric dipole moment (eEDM) on the metastable H{sup 3}Δ{sub 1} state of ThO molecule was proposed and now prepared by the ACME Collaboration [ http://www.electronedm.org ]. To interpret the experiment in terms of eEDM and dimensionless constant k{sub T,} {sub P} characterizing the strength of the T,P-odd pseudoscalar–scalar electron–nucleus neutral current interaction, an accurate theoretical study of an effective electric field on electron, E{sub eff}, and a parameter of the T,P-odd pseudoscalar–scalar interaction, W{sub T,} {sub P}, in ThO is required. We report our results for E{sub eff} (84 GV/cm) and W{sub T,} {sub P} (116 kHz) together with the hyperfine structure constant, molecule frame dipole moment, and H{sup 3}Δ{sub 1} → X{sup 1}Σ{sup +} transition energy, which can serve as a measure of reliability of the obtained E{sub eff} and W{sub T,} {sub P} values. Besides, our results include a parity assignment and evaluation of the electric-field dependence for the magnetic g factors in the Ω-doublets of H{sup 3}Δ{sub 1}.

Authors:
;  [1]
  1. Federal State Budgetary Institute “Petersburg Nuclear Physics Institute,” Gatchina, Leningrad district 188300 (Russian Federation)
Publication Date:
OSTI Identifier:
22253800
Resource Type:
Journal Article
Journal Name:
Journal of Chemical Physics
Additional Journal Information:
Journal Volume: 139; Journal Issue: 22; Other Information: (c) 2013 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0021-9606
Country of Publication:
United States
Language:
English
Subject:
74 ATOMIC AND MOLECULAR PHYSICS; ELECTRIC DIPOLE MOMENTS; ELECTRIC FIELDS; ELECTRONS; EVALUATION; HYPERFINE STRUCTURE; NEUTRAL-CURRENT INTERACTIONS

Citation Formats

Skripnikov, L. V., E-mail: leonidos239@gmail.com, Petrov, A. N., Titov, A. V., and Department of Physics, Saint Petersburg State University, Saint Petersburg, Petrodvoretz 198904. Communication: Theoretical study of ThO for the electron electric dipole moment search. United States: N. p., 2013. Web. doi:10.1063/1.4843955.
Skripnikov, L. V., E-mail: leonidos239@gmail.com, Petrov, A. N., Titov, A. V., & Department of Physics, Saint Petersburg State University, Saint Petersburg, Petrodvoretz 198904. Communication: Theoretical study of ThO for the electron electric dipole moment search. United States. https://doi.org/10.1063/1.4843955
Skripnikov, L. V., E-mail: leonidos239@gmail.com, Petrov, A. N., Titov, A. V., and Department of Physics, Saint Petersburg State University, Saint Petersburg, Petrodvoretz 198904. 2013. "Communication: Theoretical study of ThO for the electron electric dipole moment search". United States. https://doi.org/10.1063/1.4843955.
@article{osti_22253800,
title = {Communication: Theoretical study of ThO for the electron electric dipole moment search},
author = {Skripnikov, L. V., E-mail: leonidos239@gmail.com and Petrov, A. N. and Titov, A. V. and Department of Physics, Saint Petersburg State University, Saint Petersburg, Petrodvoretz 198904},
abstractNote = {An experiment to search for the electron electric dipole moment (eEDM) on the metastable H{sup 3}Δ{sub 1} state of ThO molecule was proposed and now prepared by the ACME Collaboration [ http://www.electronedm.org ]. To interpret the experiment in terms of eEDM and dimensionless constant k{sub T,} {sub P} characterizing the strength of the T,P-odd pseudoscalar–scalar electron–nucleus neutral current interaction, an accurate theoretical study of an effective electric field on electron, E{sub eff}, and a parameter of the T,P-odd pseudoscalar–scalar interaction, W{sub T,} {sub P}, in ThO is required. We report our results for E{sub eff} (84 GV/cm) and W{sub T,} {sub P} (116 kHz) together with the hyperfine structure constant, molecule frame dipole moment, and H{sup 3}Δ{sub 1} → X{sup 1}Σ{sup +} transition energy, which can serve as a measure of reliability of the obtained E{sub eff} and W{sub T,} {sub P} values. Besides, our results include a parity assignment and evaluation of the electric-field dependence for the magnetic g factors in the Ω-doublets of H{sup 3}Δ{sub 1}.},
doi = {10.1063/1.4843955},
url = {https://www.osti.gov/biblio/22253800}, journal = {Journal of Chemical Physics},
issn = {0021-9606},
number = 22,
volume = 139,
place = {United States},
year = {Sat Dec 14 00:00:00 EST 2013},
month = {Sat Dec 14 00:00:00 EST 2013}
}