Related papers: Branching fractions for $P

Branching fractions for $P_{3/2}$ decays in Ba$^+$

URL: http://arxiv.org/abs/2003.02263v1
Date: Wed, 4 Mar 2020 07:57:49 GMT
Title: Branching fractions for $P_{3/2}$ decays in Ba$^+$
Authors: Zhiqiang Zhang, K. J. Arnold, S. R. Chanu, R. Kaewuam, M. S. Safronova, M. D. Barrett
Abstract summary: Branching fractions for decays from the $P_3/2$ level in $138$Ba$+$ have been measured with a single laser-cooled ion.
Score: 1.9764590421022055
License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Abstract: 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.

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