论文标题
通过$^2 $ d $ _ {3/2} - ^2 $ d $ _ {5/2} $ INTERTAL IN IN IN CA $^+$，通过$^2 $ d $ _ {3/2} - ^2 $ _ {3/2} - ^2 $ d $ _ {3/2} - ^2 $ d $ _ {3/2} -
Improved isotope-shift-based bounds on bosons beyond the Standard Model through measurements of the $^2$D$_{3/2} - ^2$D$_{5/2}$ interval in Ca$^+$
论文作者
论文摘要
我们执行高分辨率光谱的$ 3 $ d $〜^2 $ d $ _ {3/2} -3 $ d $〜^2 $〜^2 $ d $ _ {5/2} $间隔在所有稳定的$^a $^a $ ca $^+$（a = 40、42、44、46和48）的同位素均使用$^a $ ca $^+sim $ 20 hram的频率20 h，将这些数据与4s $〜^2 $ S $ _ {1/2} \ leftrightArrow 3 $ d $ d $〜^2 $ d $ d $ _ {5/2} $转换相结合，我们进行了一个国王情节分析，并通过bosons以外的标准模型进行了对电子和中子之间未经预言的敏感性。此外，我们估计了从ba $^+$和yb $^+$中的等效光谱中对此类玻色子的敏感性。最后，数据产量同位素的4S $〜^2 $ S $ _ {1/2} \ leftrightArrow 3 $ d $〜^2 $ d $ d $ _ {3/2} $通过与Knollmann等人的最新数据结合（2019年），以每十分位数的零件过渡。
We perform high-resolution spectroscopy of the $3$d$~^2$D$_{3/2} - 3$d$~^2$D$_{5/2}$ interval in all stable even isotopes of $^A$Ca$^+$ (A = 40, 42, 44, 46 and 48) with an accuracy of $\sim$ 20 Hz using direct frequency-comb Raman spectroscopy. Combining these data with isotope shift measurements of the 4s$~^2$S$_{1/2} \leftrightarrow 3$d$~^2$D$_{5/2}$ transition, we carry out a King plot analysis with unprecedented sensitivity to coupling between electrons and neutrons by bosons beyond the Standard Model. Furthermore, we estimate the sensitivity to such bosons from equivalent spectroscopy in Ba$^+$ and Yb$^+$. Finally, the data yield isotope shifts of the 4s$~^2$S$_{1/2} \leftrightarrow 3$d$~^2$D$_{3/2}$ transition at 10 part-per-billion through combination with recent data of Knollmann et al (2019).
