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arXiv 1602.08200physics.atom-phphysics.chem-ph
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RaF作为宇称和时间反演破坏相互作用候选者的相对论耦合团簇研究

Relativistic coupled-cluster study of RaF as a candidate for parity and time reversal violating interaction

Sudip Sasmal, Himadri Pathak, Malaya K. Nayak, Nayana Vaval, Sourav Pal

摘要:

在相对论耦合集团框架下,采用Z矢量方法和期望值方法计算了RaF基态中标量-赝标(S-PS)P,T -奇相互作用常数W_s和未成对电子所受的有效电场Eeff。此外,还计算了^{223}Ra在RaF和^{223}Ra+中的磁超精细结构常数,并与实验值进行了比较,以判断所用方法的准确程度。研究结果表明,Z矢量法在计算基态性质的精度方面优于期望值法。Z矢量计算表明,RaF具有较高的Eeff(52.5 GV/cm)和Ws(141.2 kHz),是一种很有潜力的eEDM实验材料。

英文摘要:

We have employed both Z-vector method and the expectation value approach in the relativistic coupled-cluster framework to calculate the scalar-pseudoscalar (S-PS) P, T -odd interaction constant (W_s) and the effective electric field (Eeff) experienced by the unpaired electron in the ground electronic state of RaF. Further, the magnetic hyperfine structure constants of ^{223}Ra in RaF and ^{223}Ra+ are also calculated and compared with the experimental values wherever available to judge the extent of accuracy obtained in the employed methods. The outcome of our study reveals that the Z-vector method is superior than the expectation value approach in terms of accuracy obtained for the calculation of ground state property. The Z-vector calculation shows that RaF has a high E_eff (52.5 GV/cm) and W_s (141.2 kHz) which makes it a potential candidate for the eEDM experiment.

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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