Measurement of the 7p 2Po3/2 state branching fractions in Ra+

M. Fan, C. A. Holliman, S. G. Porsev, M. S. Safronova, A. M. Jayich
PRA 100, 062504 (2019)

We report a measurement of the radium ion’s 7p 2Po3/2 state branching fractions and improved theoretical calculations. With a single laser-cooled radium-226 ion we measure the P3/2 branching fractions to the 7s 2S1/2 ground state 0.87678(20), the 6d 2D5/2 state 0.10759(10), and the 6d 2D3/2 state 0.01563(21).