Evidence of Two-Source King Plot Nonlinearity in Spectroscopic Search for New Boson
Evidence of Two-Source King Plot Nonlinearity in Spectroscopic Search for New Boson
复制标题
新玻色子光谱搜索中双源金图非线性的证据
DOI：
10.1103/physrevlett.128.163201
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发表时间：
2022
影响因子：
8.6
通讯作者：
Nazarewicz, Witold
中科院分区：
文献类型：
--
作者：
Hur, Joonseok;Aude Craik, Diana P. L.;Counts, Ian;Knyazev, Eugene;Caldwell, Luke;Leung, Calvin;Pandey, Swadha;Berengut, Julian C.;Geddes, Amy;Nazarewicz, Witold
同位素位移的光学精密光谱学可以用来测试标准模型之外的新作用力，并确定原子核的基本性质。我们测量了陷阱子的高度禁戒八极跃迁的同位素位移。当结合以前的测量和最近的测量在Yb，数据显示一个国王图的非线性高达。实验数据所表现出的趋势解释核密度泛函理论计算与Fayans功能。我们还发现，与信心，有第二个不同的来源的非线性，并讨论其可能的起源。
Optical precision spectroscopy of isotope shifts can be used to test for new forces beyond the standard model, and to determine basic properties of atomic nuclei. We measure isotope shifts on the highly forbiddenoctupole transition of trappedions. When combined with previous measurements inand very recent measurements in Yb, the data reveal a King plot nonlinearity of up to. The trends exhibited by experimental data are explained by nuclear density functional theory calculations with the Fayans functional. We also find, withconfidence, that there is a second distinct source of nonlinearity, and discuss its possible origin.