INNER-SHELL PHOTOIONIZATION OF GROUND-STATE LITHIUM - THEORETICAL CALCULATION IN THE PHOTON ENERGY REGION BELOW 130 EV INCLUDING 1SNLN'L' RYDBERG RESONANCE SERIES

Calculations of 1s electron inner-shell photoionization from the 1s(2) 2s S-2(e) Li ground state have been performed using recent development s of the R-matrix code with a 19-term target representation for incide nt photon energies up to 130 eV. This photon energy range allows impor tant resonances in the partial cross sections due to 1 snln'l' autoion izing states to be obtained. Theoretical resonant results are compared with recent experimental measurements of Kiernan et al, [J. Phys. B 2 9, L181 (1996)] in the 1s2l threshold region. Partial cross sections, branching ratios, and asymmetry parameters are also compared outside t he resonant energy range with previous theoretical results of Lisini, Burke, and Hibbert [J. Phys. B 23, 3767 (1990)], who used the R-matrix code with an 11-term target representation, as well as the correspond ing experimental result; of Ferret et al. [Phys. Rev. A 36, 3172 (1987 )], Langer et al. [Phys. Rev. A 43, 1652 (1991)], and Cubaynes et al. (private communication). [S1050-2947(98)05702-3].