A numerical Hartree self-consistent field calculation of an autoionization resonance parameters for a doubly excited 2s2, 3s2, and 4s2 states of He atom with a complex absorbing potential

A numerical Hartree self-consistent field calculation of an autoionization resonance parameters for a doubly excited 2s², 3s², and 4s² states of He atom with a complex absorbing potential

Tsednee Tsogbayar^†, Yeager Danny L

(color online) The η-trajectories for for the 2s state of the He atom. The values of are 6 (a), 7.5 (b), 10 (c), and 12.5 a.u. (d), respectively. The values of strength parameter for (black crosses) are 1.9 (a), 2.1 (b), 2.2 (c), and 2.5 (d), respectively. The computational parameters are N = 256 and b = 60 a.u. (panels (a), (b), (c), and (d)) and (panels (a), (b), (c), and (d)).