镜像核半径和等压三联体

Ben Ohayon
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引用次数: 0

摘要

我们对Z=32以下稳定核的绝对均方根电荷半径进行了回顾,其中包括以前在μ介子X射线和电子散射实验综合分析中被忽视的不确定性。从这些(文本{参考半径}和同位素偏移测量中,我们得到了12对镜像的半径,并给出了可追溯的和现实的不确定性预算。我们发现镜像核之间的半径差异与等离子体不对称成正比,这证实了诺瓦里奥(Novario \emph{et al.})最近的计算结果[PRL~130, 032501]。根据拟合的比例常数及其不确定性,我们预测了 73 个以前未知的镜像伙伴的半径,这些半径对于原子和核理论的基准测试、校准整个链以及作为核β衰变计算的输入都是有用的。假定等空间对称性破坏可忽略不计,对$(T=1,T_z=0)$ 核的半径进行了内插。这样就完成了与模型无关的、高精度提取所有参与检验 CKM 矩阵单位性的原子核的电荷和弱半径的工作。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Radii of Mirror Nuclei and Isobaric Triplets
We present a review of absolute root-mean-square charge radii of stable nuclei up to $Z=32$, which includes a previously overlooked uncertainty in the combined analysis of muonic x-ray and electron scattering experiments. From these \textit{reference radii} and isotope shift measurements, we obtain those of 12 mirror pairs with a traceable and realistic uncertainty budget. The difference in radii between mirror nuclei is found to be proportional to the isospin asymmetry, confirming recent calculations by Novario \emph{et al.} [PRL~130, 032501]. From the fitted proportionality constant and its uncertainty, the radii of 73 previously unknown mirror partners are predicted. These are useful e.g. for benchmarking atomic and nuclear theory, calibrating entire chains, and as an input to nuclear beta-decay calculations. The radii of $(T=1,T_z=0)$ nuclei are interpolated assuming negligible isospin symmetry breaking. This completes a model-independent, high-precision extraction of the charge and weak radii of all nuclei involved in the testing of the unitarity of the CKM matrix.
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