Dielectronic recombination of ground-state and metastable Li+ ions

Dielectronic recombination has been investigated for Delta n = 1 resonances of ground-state Li+(1s(2)) and for Delta n = 0 resonances of metastable Li (+) (1s2s S-3). The ground-state spectrum shows three prominent transition s between 53 and 64 eV, while the metastable spectrum exhibits many transit ions with energies <3.2 eV. Reasonably good agreement of R-matrix, LS coupl ing calculations with the measured recombination rate coefficient is obtain ed. The time dependence of the recombination rate yields a radiative lifeti me of 52.2 +/- 5.0 s for the 2(3)S level of Li (+). [S1050-2947(99)50411-3] .