Partial-wave analysis of particular peaks in total scattering cross sections caused by a single partial wave
2014 (English)In: European Physical Journal D: Atomic, Molecular and Optical Physics, ISSN 1434-6060, E-ISSN 1434-6079, Vol. 68, no 10, 323- p.Article in journal (Refereed) Published
Certain broad low-energy peaks in the total cross sections relevant for electron-atom scattering are studied and found to be caused by a single partial wave. Such peaks are associated here with complex orbital angular momentum (Regge) pole trajectories. At the peak energies these S-matrix poles are in some neighborhood of an integer value and at the same time near its maximum real part value as a function of energy. Such peaks are found to have no time delays. Results are presented for the Dirac equation using three rational function Thomas-Fermi potential models, all with the same behavior at large and small radial distances.
Place, publisher, year, edition, pages
2014. Vol. 68, no 10, 323- p.
Other Physics Topics
IdentifiersURN: urn:nbn:se:kth:diva-157619DOI: 10.1140/epjd/e2014-50409-7ISI: 000344342100006ScopusID: 2-s2.0-84908405853OAI: oai:DiVA.org:kth-157619DiVA: diva2:770865
QC 201412112014-12-112014-12-112014-12-11Bibliographically approved