Hyperfine interactions in the alkaline-earth sr ions by collinear fast beam laser spectroscopy

The magnetic dipole hyperfine structure constants of the87SrII 5s2S1/2 ground state and the 5p2P1/2 excited state, and the isotope shifts of the ionic 5s2S1/2 → 5p2P1/2 resonance transition for all stable Sr isotopes, measured by collinear fast beam laser spectroscopy, are reported.