论文标题
高精度质量测量$^{168} $ yb用于验证非线性同位素移位
High-precision mass measurement of $^{168}$Yb for verification of nonlinear isotope shift
论文作者
论文摘要
$^{168} $ yb的绝对质量值已通过Jyfltrap Penning陷阱质谱仪在离子指南同位素分离器在线（Igisol）设施直接确定。需要从YB原子过渡频率的高精度同位素移位测量值中提取超过标准模型物理的可能签名的$^{168} $ yb的质量的更精确值。测得的质量进出值，me（$^{168} $ yb）= $ - $ 61579.846（94）KEV，精确度更高12倍，并且与原子质量评估2016值的偏差为1.7 $σ$。讨论了对稳定YB同位素的精确同位素转移研究的影响。
The absolute mass value of $^{168}$Yb has been directly determined with the JYFLTRAP Penning trap mass spectrometer at the Ion Guide Isotope Separator On-Line (IGISOL) facility. A more precise value of the mass of $^{168}$Yb is needed to extract possible signatures of beyond standard model physics from high-precision isotope shift measurements of Yb atomic transition frequencies. The measured mass-excess value, ME($^{168}$Yb) = $-$61579.846(94) keV, is 12 times more precise and deviates from the Atomic Mass Evaluation 2016 value by 1.7$σ$. The impact on precision isotope shift studies of the stable Yb isotopes is discussed.
