Sr 5$p_{1/2}$${\mathrm{ns}}_{1/2}$ and 5$p_{3/2}$${\mathrm{ns}}_{1/2}$ J=1 autoionizing states

We report a comprehensive experimental study of the Sr i autoionizing 5$p_{1/2}$ ${\mathrm{ns}}_{1/2}$ and 5$p_{3/2}$ ${\mathrm{ns}}_{1/2}$ J=1 states with n ranging from 10 to 36. We have used an isolated-core-excitation method to determine the energies, autoionization rates, and interseries interaction between the two 5$p_{1/2}$ ${\mathrm{ns}}_{1/2}$ and 5$p_{3/2}$ ${\mathrm{ns}}_{1/2}$ channels. A six-channel multichannel-quantum-defect-theory analysis of the data has been performed, and good agreement between the experiment and the theory has been obtained.