Electric dipole moments generated by nuclear Schiff moment interactions: A reassessment of the atoms <math><mmultiscripts><mi>Xe</mi><mprescripts/><none/><mn>129</mn></mmultiscripts></math> and <math><mmultiscripts><mi>Hg</mi><mprescripts/><none/><mn>199</mn></mmultiscripts></math> and the molecule <math><mmultiscripts><mi>TlF</mi><mprescripts/><none/><mn>205</mn></mmultiscripts></math> - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Physical Review A Année : 2022

Electric dipole moments generated by nuclear Schiff moment interactions: A reassessment of the atoms Xe129 and Hg199 and the molecule TlF205

Mickaël Hubert
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Timo Fleig
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Résumé

We present relativistic many-body calculations of atomic and molecular Schiff-moment interaction constants including interelectron correlation effects using atomic Gaussian basis sets specifically optimized for the Schiff interaction. Our present best results employing a Gaussian nuclear density function are αSM=(0.362±0.025)×1017ecmefm3 for atomic Xe129, αSM=(2.26±0.23)×1017ecmefm3 for atomic Hg199, and WSM=(39967±3600) a.u. for the thallium nucleus in the molecule TlF205. We discuss agreements and discrepancies between our present results and those from earlier calculations on the atoms Xe129 and Hg199. Using the most recent measurements of P,T-odd electric dipole moments and the present interaction constants, reliable upper bounds on the Schiff moments of the Hg199 and Tl205 nuclei are determined in the context of a single-source assumption.

Dates et versions

hal-03618646 , version 1 (24-03-2022)

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Mickaël Hubert, Timo Fleig. Electric dipole moments generated by nuclear Schiff moment interactions: A reassessment of the atoms Xe129 and Hg199 and the molecule TlF205. Physical Review A, 2022, 106 (2), pp.022817. ⟨10.1103/PhysRevA.106.022817⟩. ⟨hal-03618646⟩
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