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Zur Theorie depolarisierender Stöße von angeregten Alkaliatomen mit Edelgasatomen
Author(s) -
Elbel M.
Publication year - 1969
Publication title -
annalen der physik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.009
H-Index - 68
eISSN - 1521-3889
pISSN - 0003-3804
DOI - 10.1002/andp.19694770508
Subject(s) - physics , dephasing , atomic physics , zeeman effect , angular momentum , collision , momentum (technical analysis) , coupling (piping) , quantum mechanics , materials science , computer security , finance , computer science , magnetic field , economics , metallurgy
Abstract A recently proposed model providing an easy calculation of the branching ratios of collision‐induced transitions among the ZEEMAN sublevels of exited alkali atoms is criticized. It proves valid if no coupling takes place between the angular momentum of the motion of the colliding atoms and the projection of the electronic orbital momentum upon the internuclear axis. This coupling would arise if the molecular σ‐ and π‐states of the incoming wave would be strongly dephased during the collision. As a consequence, the transitions 2 P 1/2, m = 1/2 ↔ 1 P 1/2, m = −1/2 and 2 P 3/2 , m = − 1/2 would occur which would be forbidden in the case of only slight dephasing of the σ‐ and the π‐states.