论文标题
$ p_ {3/2} $衰减的分支分数在ba $^+$中
Branching fractions for $P_{3/2}$ decays in Ba$^+$
论文作者
论文摘要
从$ p_ {3/2} $ pluve $^{138} $ ba $^+$中的腐烂分支分支分数是用一个激光冷却的离子测量的。衰减概率为$ s_ {1/2} $，$ d_ {3/2} $和$ d_ {5/2} $确定为$ 0.741716（71）$，$ 0.028031（23）$和$ 0.230253（61）$，分别是以前的结果。我们的方法仅涉及光学泵送和状态检测，因此相对没有系统的影响。测量以两种不同的方式进行检查以检查一致性。我们的分析还包括对$ d_ {5/2} $ lifetime的测量，为此我们获得了30.14（40）\ s。
Branching fractions for decays from the $P_{3/2}$ level in $^{138}$Ba$^+$ have been measured with a single laser-cooled ion. Decay probabilities to $S_{1/2}$, $D_{3/2}$ and $D_{5/2}$ are determined to be $0.741716(71)$, $0.028031(23)$ and $0.230253(61)$, respectively, which are an order of magnitude improvement over previous results. Our methodology only involves optical pumping and state detection, and is hence relatively free of systematic effects. Measurements are carried out in two different ways to check for consistency. Our analysis also includes a measurement of the $D_{5/2}$ lifetime, for which we obtain 30.14(40)\,s.
