We study the analyticity properties of forward electron-neutral atom scattering in a second quantized formalism. We derive a Low equation for these processes and deduce from it the location of direct and exchange bound state poles and the presence of both right-and left-hand cuts. We also examine th
The use of analyticity in atomic scattering calculations
โ Scribed by J. Nuttall
- Publisher
- Elsevier Science
- Year
- 1973
- Tongue
- English
- Weight
- 465 KB
- Volume
- 6
- Category
- Article
- ISSN
- 0010-4655
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โฆ Synopsis
Some of the ways in which analyticity has been used in the past and might be used in the future to aid in performing calculations of atomic scattering amplitudes are summarized. Included are extrapolation methods, contour distortion techniques and the determination of resonance positions.
'~Invited paper presented at the conference on "Numerical here all channels are open and this must have an effect, Methods in Atom-Electron Collisions, 9-12 July 1973, .
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