S. Diehl et al., PHOTOELECTRON-SPECTROSCOPY MEASUREMENTS AND THEORETICAL CALCULATIONS OF THE LOWEST DOUBLY HOLLOW LITHIUM STATE, Physical review. A, 56(2), 1997, pp. 1071-1074
We have measured, using electron spectroscopy, the lowest-energy doubl
y hollow lithium triply excited (3l3l'3l '') P-2 state. Energies, widt
hs, and partial cross sections have been measured and calculated using
the saddle-point technique and the R-matrix approximation. Our result
s show good agreement between experimental and theoretical data for th
e energy and the width of the doubly hollow state.