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Open AccessFeature PaperArticle

P , T -Violating and Magnetic Hyperfine Interactions in Atomic Thallium

1
Laboratoire de Chimie et Physique Quantiques, IRSAMC, Université Paul Sabatier Toulouse III, 118 Route de Narbonne, F-31062 Toulouse, France
2
B.P. Konstantinov Petersburg Nuclear Physics Institute of National Research Centre “Kurchatov Institute”, Gatchina, 188300 Leningrad District, Russia
*
Author to whom correspondence should be addressed.
Symmetry 2020, 12(4), 498; https://doi.org/10.3390/sym12040498
Received: 5 March 2020 / Revised: 16 March 2020 / Accepted: 17 March 2020 / Published: 30 March 2020
(This article belongs to the Special Issue Relativistic and QED Effects in Atoms and Molecules)
We present state-of-the-art string-based relativistic general-excitation-rank configuration interaction and coupled cluster calculations of the electron electric dipole moment, the nucleon–electron scalar-pseudoscalar, and the magnetic hyperfine interaction constants ( α d e , α C S , A | | , respectively) for the thallium atomic ground state 2 P 1 / 2 . Our present best values are α d e = 558 ± 28 , α C S = 6.77 ± 0.34 [ 10 18 e cm], and A | | = 21172 ± 1059 [MHz]. The central value of the latter constant agrees with the experimental result to within 0.7% and serves as a measurable probe of the P , T -violating interaction constants. Our findings lead to a significant reduction of the theoretical uncertainties for P , T -odd interaction constants for atomic thallium but not to stronger constraints on the electron electric dipole moment, d e , or the nucleon–electron scalar-pseudoscalar coupling constant, C S . View Full-Text
Keywords: electron electric dipole moment; scalar-pseudoscalar interaction; magnetic hyperfine interaction; relativistic many-body theory electron electric dipole moment; scalar-pseudoscalar interaction; magnetic hyperfine interaction; relativistic many-body theory
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MDPI and ACS Style

Fleig, T.; Skripnikov, L.V. P , T -Violating and Magnetic Hyperfine Interactions in Atomic Thallium. Symmetry 2020, 12, 498.

AMA Style

Fleig T, Skripnikov LV. P , T -Violating and Magnetic Hyperfine Interactions in Atomic Thallium. Symmetry. 2020; 12(4):498.

Chicago/Turabian Style

Fleig, Timo; Skripnikov, Leonid V. 2020. " P , T -Violating and Magnetic Hyperfine Interactions in Atomic Thallium" Symmetry 12, no. 4: 498.

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