Abstract
Calculations of inner-shell photoionization of and Li excited states have been performed using recent developments of the R-matrix code with a 29-term target representation for incident photon energies up to 165 eV, with particular emphasis on multiple electron processes. Partial and total cross sections are given for a number of excitation processes including the lower members of 19 hollow atom resonance series. The results are compared with recent experimental measurements of the lowest resonance of even-parity hollow lithium states produced by photoexcitation of laser-excited lithium atoms. Experiment and theory are in excellent agreement on a relative scale. The enhancement of the shake-up process increases with initial state excitation, up to 500% over that of the ground state for Good agreement is also obtained for K-shell photoionization when comparing branching ratios with available experimental results.
- Received 22 July 1998
DOI:https://doi.org/10.1103/PhysRevA.59.462
©1999 American Physical Society