Close coupling approach in optically allowed atomic transitions
β Scribed by S. Bougouffa
- Publisher
- John Wiley and Sons
- Year
- 2007
- Tongue
- English
- Weight
- 460 KB
- Volume
- 16
- Category
- Article
- ISSN
- 0003-3804
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π SIMILAR VOLUMES
In solids with a coupling between guest and host atoms, a new mechanism of cooperative transitions is possible since the centers formed by the guest atoms involve surrounding host atoms. This leads to orbital overlap between centers via the host atoms which can result in cooperative transitions. The
We present results for low-energy elastic S-, P-, and D-wave phase shifts, capture and total cross sections of positron-helium scattering with different basis sets in the close coupling approach using realistic wave functions for He(Isis), He(ls21s), He(ls21 p) and positronium (ls) states. A resonan
I-ull close coupling calculation\ of magnetic transitions m 11~: + 112 collision\ arc rcportcd. The results arc an.llyrcd u\mp, the uncoupled space frame approach of Kouri and Shimom. This enables one to study the m:qnetic trantitlon T-matnccs as a function of orbital angular momentum quantum number
We have investigated the effect of surrounding plasmas on several singly excited and doubly excited meta-stable bound states of helium atom using highly correlated basis functions for singly excited S, P, D states and CI-type basis functions for doubly excited meta-stable D states. Plasma effect is