1s22pns(P01) autoionizing levels in Be-like Al and C ions

Abstract

This work is focused on the possibility of using the R-matrix Floquet theory and codes and its extension to laser induced degenerate state to describe dielectronic recombination of Li-like into Be-like ions. The uncertainty concerning the best way to include radiative damping effect is no longer a problem when the full electron collision and radiative processes are treated simultaneously and radiation field is treated to all orders. The method accounts for the reverse process corresponding to single-photon ionization. Following this approach, the 1s22snl(Se1) and 1s22pnl(P01) Rydberg states, embedded in the electric dipole field of the 2s-2p core, are dressed by a laser field, assumed to be monochromatic, monomode, linearly polarized, and spatially homogeneous. As in the R-matrix Floquet theory, in the external region, since the coupling field potential vanishes, the calculation yields the complete information on the autoionizing rate and field-free positions. Comparisons with available data are presented.