Eur. Phys. J. D (2014) 68: 154
https://doi.org/10.1140/epjd/e2014-40789-y

Regular Article

¹D^o and ³D^o doubly excited ridge states of H⁻: total and partial decay widths

Department of Applied Sciences, Technological Educational Institute of Chalkis, 34400 Psahna, Greece

^a e-mail: sthemelis@teihal.gr

Received: 11 December 2013
Received in final form: 14 February 2014
Published online: 23 June 2014

Abstract

Partial and total autodetachment widths, with interchannel coupling, for the ¹D^o and ³D^o ridge resonances of H⁻, near the n = 3, 4, 5, 6 and 7 hydrogenic thresholds, have been computed. The Complex Eigenvalue Schrödinger Equations are solved variationally using complex symmetric non-Hermitian matrix equations. The ³D^o shape resonance, above the n = 3 hydrogenic threshold, is included in the calculations. An approximate distribution of the vector-coupling configuration mixing coefficients, near the two electron ejection threshold, is obtained. Trends regarding the decay dynamics, the final channel distribution, and the excitation of electrons with large orbital angular momentum, near threshold, are analyzed.