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 language | English (US) |
|---|---|
| Pages (from-to) | 1886-1891 |
| Number of pages | 6 |
| Journal | Physical Review A |
| Volume | 4 |
| Issue number | 5 |
| DOIs | |
| State | Published - 1971 |
Bibliographical note
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