Photoionization with excitation and double photoionization of the Li+ ground 1 1S state and metastable 2 1,3S states

Partial cross-sections for photoionization with excitation of Li+ leaving the remaining bound electron in the 1s, 2s, 2p, 3s, 3p, and 3d states and total cross-sections for double photoionization have been calculated employing the time-dependent close-coupling method. The calculations include both the ground state 1s21S and the two lowest metastable excited states 1s2s 1,3S. Photon energies below and up to about 200 eV above the respective thresholds for double ionization are considered. Comparisons are drawn mainly with convergent close-coupling results [A. S. Kheifets and I. Bray, Phys. Rev. A 58, 4501 (1998)] and B-spline based R-matrix results [H. W. van der Hart and L. Feng, J. Phys. B 34, L601 (2001)]