NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Photodetachment cross sections of negative ions - The range of validity of the Wigner threshold lawThe threshold behavior of the photodetachment cross section of negative ions as a function of photon frequency is usually described by the Wigner law. This paper reports the results of a model calculation using the zero-core-contribution (ZCC) approximation. Theoretical expressions for the leading correction to the Wigner law are developed, giving the range of validity of the Wigner law and the expected accuracy. The results are relevant to extraction of electron affinities from experimental photodetachment data.
Document ID
19900030875
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Farley, John W.
(Nevada, University Las Vegas, United States)
Date Acquired
August 14, 2013
Publication Date
December 1, 1989
Publication Information
Publication: Physical Review A - General Physics, 3rd Series
Volume: 40
ISSN: 0556-2791
Subject Category
Atomic And Molecular Physics
Accession Number
90A17930
Funding Number(s)
CONTRACT_GRANT: NAGW-1585
CONTRACT_GRANT: NSF PHY-89-03387
CONTRACT_GRANT: F04611-87-K-0211
CONTRACT_GRANT: NSF PHY-87-19090
Distribution Limits
Public
Copyright
Other

Available Downloads

There are no available downloads for this record.
No Preview Available