Federal State Budgetary Institute "Petersburg Nuclear Physics Institute," Gatchina, Leningrad district 188300, Russia.
J Chem Phys. 2013 Dec 14;139(22):221103. doi: 10.1063/1.4843955.
An experiment to search for the electron electric dipole moment (eEDM) on the metastable H(3)Δ1 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 kT, 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, Eeff, and a parameter of the T,P-odd pseudoscalar-scalar interaction, WT, P, in ThO is required. We report our results for Eeff (84 GV/cm) and WT, P (116 kHz) together with the hyperfine structure constant, molecule frame dipole moment, and H(3)Δ1 → X(1)Σ(+) transition energy, which can serve as a measure of reliability of the obtained Eeff and WT, 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(3)Δ1.
一个用于在 ThO 分子的亚稳态 H(3)Δ1 态上寻找电子电偶极矩 (eEDM) 的实验已经被提出，并由 ACME 合作组 [http://www.electronedm.org] 准备实施。为了根据 eEDM 和无量纲常数 kT、P 来解释实验，P 表征了 T,P-odd 赝标量-标量电子-核中性电流相互作用的强度，需要对 ThO 中电子的有效电场 Eeff 和 T,P-odd 赝标量-标量相互作用的参数 WT, P 进行精确的理论研究。我们报告了我们对 Eeff（84GV/cm）和 WT, P（116kHz）的结果，以及超精细结构常数、分子框架偶极矩和 H(3)Δ1→X(1)Σ(+)跃迁能量，这些结果可以作为所得到的 Eeff 和 WT, P 值的可靠性的衡量标准。此外，我们的结果包括了 H(3)Δ1 的 Ω-双重态中磁 g 因子的宇称分配和电场依赖性的评估。
