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Total cross sections for Na(3 /sup 2/P/sub 1///sub 2/. -->. 3 /sup 2/P/sub 3///sub 2/) + rare gas collisions

Journal Article · · J. Chem. Phys.; (United States)
OSTI ID:7354633
Quantum-mechanical calculations that use the recent pseudopotentials of Pascale and Vandeplanque were employed to obtain the 3 /sup 2/P/sub 1///sub 2/..-->.. 3 /sup 2/P/sub 3///sub 2/ fine structure transition cross sections for Na+He, Ne, Ar, Kr, and Xe collisions. The collision energy range investigated was from threshold (0.00213 eV) to 0.5 eV. The cross sections are found to rise rapidly from threshold to a plateau, with the Na+Ar, Kr, Xe systems also exhibiting a large secondary maximum at approximately 0.1 eV. Regular undulatory structure was observed superimposed on all the cross sections except for the Na+Ne system, while resonances caused by quasibound states were found to be most prominent on the Na+Ar system. Thermally averaged cross sections were calculated from 100 to 1000 degreeK and are found to be in reasonable accord with experiment. (AIP)
Research Organization:
Service de Physique Atomique, Centre d'Etudes Nucleaires de Saclay, BP N 2,91190 Gif-sur-Yvette, France
OSTI ID:
7354633
Journal Information:
J. Chem. Phys.; (United States), Journal Name: J. Chem. Phys.; (United States) Vol. 64:9; ISSN JCPSA
Country of Publication:
United States
Language:
English