Autoionizing doubly-excited states of 3Σg? symmetry of H2

摘要

We report R-matrix calculations of doubly-excited 3Σg? states of molecular hydrogen corresponding to 3d?πn??π configurations. These states form Rydberg series converging to the 3d?π series limit. They lie in the continuum of the doubly-excited states of 3Σg? symmetry built on the 2p?π ion core, and therefore they are autoionized. Calculations of resonance positions and widths are presented.