High resolution measurements of partial photoionization cross sections in hollow Lithium: A critical comparison with advanced many-body calculations

Abstract

Photoelectron data for hollow lithium states obtained with unprecedented high spectral resolution and sensitivity are presented. A critical comparison is made with the most recent theoretical results. Partial cross sections are measured providing the first definitive test of advanced ab initio calculations for this highly excited four-body atomic system. © 1996 The American Physical Society.