Electron-ion collisional approach in the study of Rydberg and doubly-excited electronic states of H2 and HeH+

29th International Conference on Photonic, Electronic, and Atomic Collisions

Telmini, Mourad^1 ; Bezzaouia, Soumaya^1 ; Oueslati, Houaida^1 ; Argoubi, Fatma^1 ; Bouhali, Islem^1 ; Jungen, Christian^2,3

LSAMA, Department of Physics, Faculty of Science of Tunis, University of Tunis El Manar, Tunis

2092, Tunisia^1

Laboratoire Aime Cotton du CNRS, Universite de Paris-Sud, Orsay

F-91405, France^2

Department of Physics and Astronomy, University College London, London

WC1E 6BT, United Kingdom^3

关键词: Collisional process;    Doubly excited state;    Excited electronic state;    Molecular hydrogen;    Molecular systems;    Multi-channel quantum defect theory;    Prolate spheroidal coordinates;    R-matrix method;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/635/7/072017/pdf
DOI  :  10.1088/1742-6596/635/7/072017

来源: IOP

【 摘 要 】

The halfium model combines the eigenchannel R-matrix method and the generalized multichannel quantum defect theory in prolate spheroidal coordinates to characterize Rydberg and doubly-excited states of two-electron molecular systems from first pricnciples. The background picture for the model is a collisional process between the outermost (Rydberg) electron on the ionic core. Various applications to molecular hydrogen and hydrohelium ion will be shown.