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Effect of the potential well on low temperature pressure broadening in CO-HePreviously reported low-temperature pressure-broadening calculations (Green, 1985) for CO-He interacting via an SCF-CI potential are compared with new calculations in which the attractive part of the potential is either reduced by half or eliminated entirely. Results demonstrate that the attractive well is responsible for low-temperature enhancement of pressure-broadening cross sections and suggest that agreement with recent experimental values at 4 K (Messer and DeLucia, 1984) can be obtained by a modest reduction, probably within the expected uncertainty, in the attractive part of the SCF-CI potential.
Document ID
19860064468
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Palma, A. (Columbia University New York, United States)
Green, S. (NASA Goddard Institute for Space Studies New York, United States)
Date Acquired
August 12, 2013
Publication Date
August 1, 1986
Publication Information
Publication: Journal of Chemical Physics
Volume: 85
ISSN: 0021-9606
Subject Category
INORGANIC AND PHYSICAL CHEMISTRY
Funding Number(s)
CONTRACT_GRANT: NSG-7105
Distribution Limits
Public
Copyright
Other