2018/08/30 by Yongliang Hao, Miroslav Ilias, Ephraim Eliav +3 · 1 citation
Physics and Astronomy · #physics.atom-ph
paper · pdf · doi:10.1103/physreva.98.032510
published as Phys. Rev. A 98, 032510 (2018) · 9 pages, 3 figures, 3 tables, minor changes, the published version
arxiv created 2018/08/30 · arxiv updated 2018/09/28
We present high accuracy relativistic coupled cluster calculations of the P-odd interaction coefficient WA describing the nuclear anapole moment effect on the molecular electronic structure. The molecule under study, BaF, is considered a promising candidate for the measurement of the nuclear anapole moment, and the preparation for the experiment is now underway [Altunas et al., Phys. Rev. Lett. 120, 142501 (2018)]. Influence of various computational parameters (size of the basis set, treatment of relativistic effects, and treatment of electron correlation) on the calculated WA coefficient is investigated and a recommended value of 147.7 Hz with an estimated uncertainty of 1.5% is proposed.