Forcing conservation of particle flux in perturbation-theory calculations of inelastic scattering

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6 Scopus citations

Abstract

Two approximations to Seaton's unitarization scheme are described which make it possible to impose the conservation-of-particle-flux requirements on an approximate calculation of inelastic scattering without making calculations of elastic scattering in the two channels which the transition connects. One approximation is based on the black-sphere model of Feshbach and Weisskopf. Another approximation corrects only for back coupling and can be equivalent to a method of Levine. The methods are illustrated by applying them to the Born approximation for the 1s-2s excitation of the hydrogen atom by electron impact.

Original languageEnglish (US)
Pages (from-to)1886-1891
Number of pages6
JournalPhysical Review A
Volume4
Issue number5
DOIs
StatePublished - Jan 1 1971

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