论文标题
普遍的国王线性和新物理搜索，同位素转移
Generalized King linearity and new physics searches with isotope shifts
论文作者
论文摘要
不同同位素的原子光谱线被移动，揭示了核的性质变化。对于无旋转核，预计两个不同的跃迁的同位素变化将是线性相关的，至少在核质量和电荷分布的变化时处于领先顺序。提出了一种在所谓的国王图中打破线性性的破坏，作为一种新的方法，可以在标准模型之外搜索物理学。鉴于同位素偏移光谱的最新实验进展，这些搜索的灵敏度将受到同位素质量和/或核效应的确定的限制，这可能会在可观察到的水平上诱导非线性。在这项工作中，我们提出了传统的国王图的两种可能的概括，通过包括其他同位素转移测量值来克服这些局限性，从而在纯粹的光谱驱动的方法中显着扩展了国王图的新物理覆盖范围。
Atomic spectral lines for different isotopes are shifted, revealing a change in the properties of the nucleus. For spinless nuclei such isotope shifts for two distinct transitions are expected to be linearly related, at least at leading order in a change of the nuclear mass and charge distribution. Looking for a breaking of linearity in so-called King plots was proposed as a novel method to search for physics beyond the standard model. In the light of the recent experimental progress in isotope shift spectroscopy, the sensitivity of these searches will become limited by the determination of the isotope masses and/or by nuclear effects which may induce nonlinearities at an observable level. In this work, we propose two possible generalizations of the traditional King plot that overcome these limitations by including additional isotope shift measurements, thus significantly extending the new physics reach of King plots in a purely spectroscopy-driven approach.
