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arXiv 1808.02771physics.atom-ph
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从相对论耦合集团理论计算BaF中的核偶极矩相互作用

The nuclear anapole moment interaction in BaF from relativistic coupled cluster theory

Yongliang Hao, Miroslav Ilias, Ephraim Eliav, Peter Schwerdtfeger, Victor V. Flambaum, Anastasia Borschevsky

摘要:

我们提出了高精度的相对论耦合集团计算的P-奇相互作用系数$W_A$描述核的Anapole矩对分子电子结构的影响。正在研究的分子BaF被认为是测量核anapole矩的有希望的候选者,现在正在进行实验的准备工作[Altunas等人,物理修订版信函120,142501(2018)]。各种计算参数(基组的大小,相对论效应的治疗,和治疗的电子相关)上计算的$W_A$系数的影响进行了调查和建议值为147.7 Hz,估计不确定度为1.5%。

英文摘要:

We present high accuracy relativistic coupled cluster calculations of the P-odd interaction coefficient $W_A$ 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 $W_A$ coefficient is investigated and a recommended value of 147.7 Hz with an estimated uncertainty of 1.5% is proposed.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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