The autoionizing 5dng J = 1-5 states in barium for n=5-8 were investigated in a two-step pulsed laser atomic beam experiment. The wavefunctions of the 5dng configuration can be well described in a (jl)K-coupled basis. Each 5d(j)ng[K] fine structure state autoionizes into a single 6sepsilonl continuum channel. Autoionization rates, deduced from observed linewidths, are found to be symmetrically lower than values calculated using a single configuration approximation. The fine structure dependence of the autoionization rates, however, can be reproduced in these calculations.
|Journal||Journal of Physics B: Atomic, Molecular and Optical Physics|
|Publication status||Published - 1994|
van Leeuwen, R., Ubachs, W. M. G., & Hogervorst, W. (1994). AUTOIONIZATION OF LOW-LYING 5DNG STATES IN BARIUM. Journal of Physics B: Atomic, Molecular and Optical Physics, 27(17), 3891-3904. https://doi.org/10.1088/0953-4075/27/17/013