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Gauge dependence of helium double photoionization calculatoins

Journal Article · · Bulletin of the American Physical Society
OSTI ID:394293
In previous work, the eigenchannel R-matrix method was extended to calculate the double photoionization of helium by single-photon absorption for photon energies in the range 80-280 eV. Calculations were performed in both the velocity and acceleration gauges. A significant discrepancy ({approx} 20%) was found between the two gauge results. The relationships between the various gauge forms are discussed. In an effort to resolve the discrepancy between the gauges, alternate methods are explored.
OSTI ID:
394293
Report Number(s):
CONF-9605105--
Journal Information:
Bulletin of the American Physical Society, Journal Name: Bulletin of the American Physical Society Journal Issue: 3 Vol. 41; ISSN 0003-0503; ISSN BAPSA6
Country of Publication:
United States
Language:
English

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