论文标题
黄金中高精细结构异常的原子计算
Atomic calculations of hyperfine structure anomaly in gold
论文作者
论文摘要
已经计算出对中性金原子的低凹水平和汞的黄金离子的磁性超细结构常数，考虑到bohr-Weisskopf（BW）效应。 BW效应表示为原子和核（$ d_ \ mathrm {nuc} $）因子的产物。我们已经计算了原子因子，从而使人们能够从实验数据中提取远离稳定性金核的BW校正值。通过与可用的实验数据进行比较，已经估计了我们原子计算的可能不确定性。已经表明，$ d_ \ mathrm {nuc} $计算中的标准单粒子方法合理地描述了$ 11/2^ - $ GOLD ISOMES和$ 3/2^+$ $ \ rm^rm^{199} au $的实验数据。同时，它无法描述$^{197} \ mathrm {au} $中的超细常数。这表明在$ \ rm ^{197} au $中比$ \ rm ^{199} au $中更明显的配置混合。
The magnetic hyperfine structure constants have been calculated for low-lying levels in neutral gold atom and gold-like ion of mercury taking into account Bohr--Weisskopf (BW) effect. BW effect is represented as a product of atomic and nuclear ($d_\mathrm{nuc}$) factors. We have calculated the atomic factors, which enable one to extract BW-correction values for far from stability gold nuclei from the experimental data. The possible uncertainty of our atomic calculations have been estimated by the comparison with the available experimental data. It has been shown that the standard single-particle approach in $d_\mathrm{nuc}$ calculation reasonably well describes experimental data for $11/2^-$ gold isomers and $3/2^+$ ground state of $\rm ^{199}Au$. At the same time, it fails to describe the hyperfine constant in $^{197}\mathrm{Au}$. This indicates the more pronounced configuration mixing in $\rm ^{197}Au$ than in $\rm ^{199}Au$.
