Bremsstrahlung Regge-Type Representation
Journal Article
·
· AIP Conference Proceedings
- Department of Physics and Astronomy, University of Pittsburgh, Pittsburgh, PA 15260 (United States)
We report a new approach to describe the features of the bremsstrahlung process in electron-atom interaction. The method employs a modification of the Watson transform. We rewrite the partial wave sum in the form of a contour integral in the complex l-plane and we identify contributions due to particular singularities of the elastic scattering S-matrix considered as a function of complex angular momenta. The behavior of the trajectories of these poles, known as Regge poles, as a function of electron energy, exhibits common features for a broad class of potentials, making the representation useful for description of the general features of the bremsstrahlung cross section. We demonstrate that the extent of classical-quantum correspondence for free-free radiative transitions can be assessed using this representation.
- OSTI ID:
- 20632529
- Journal Information:
- AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 680; ISSN APCPCS; ISSN 0094-243X
- Country of Publication:
- United States
- Language:
- English
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