TREATMENT OF BE-1))(2)S AUGER RESONANCE WITH DIFFERENT DECOUPLINGS OFTHE DILATED ELECTRON PROPAGATOR((1S()

Authors
MEDIKERI MN MISHRA MK
Citation
Mn. Medikeri et Mk. Mishra, TREATMENT OF BE-1))(2)S AUGER RESONANCE WITH DIFFERENT DECOUPLINGS OFTHE DILATED ELECTRON PROPAGATOR((1S(), Proceedings of the Indian Academy of Sciences. Chemical sciences, 106(2), 1994, pp. 111-121
Citations number
46
Categorie Soggetti
Chemistry
Journal title
Proceedings of the Indian Academy of Sciences. Chemical sciences → ACNP
ISSN journal
02534134
Volume
106
Issue
2
Year of publication
1994
Pages
111 - 121
Database
ISI
SICI code
0253-4134(1994)106:2<111:TOBARW>2.0.ZU;2-#
Abstract
The diagonal 2ph-TDA and quasiparticle decouplings of the dilated elec tron propagator (based on an underlying bi-variational SCF) are utiliz ed to calculate energy and width of the Be+(1s-1)2S Auger resonance fo r the first time. Comparison with experimental and other theoretical r esults reveals that the renormalized infinite order diagonal 2ph-TDA d ecoupling seems to offer a less balanced approach to the treatment of resonances than the second-order decoupling. The diagonal quasiparticl e approximation to the self energy is seen to offer an effective and e conomic alternative to the non-diagonal propagator calculations.