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Theoretical study of differential charge-transfer cross sections for Ne/sup 4+/+He collisions at low energies

Journal Article · · Phys. Rev. A; (United States)
A quantal two-channel calculation is applied to study charge-transfer differential cross sections in Ne/sup 4+/ on He collisions at laboratory impact energies from 220 to 500 eV. The experimental data of Tunnell et al. were used to fit empirical potential curves and coupling terms from which the observed oscillatory structures in the differential cross sections were analyzed. In contrast with the double-charge-transfer process in C/sup 4+/ on He, where the oscillations in the differential cross sections are attributed to pure Stueckelberg oscillations, we demonstrated that the differential cross sections for charge transfer in Ne/sup 4+/ on He exhibit many fine fast oscillations and the observed structures are due to the envelopes of these unresolved fast oscillations. Classical deflection functions are used to help in interpreting the calculated oscillations.
Research Organization:
Department of Physics, Kansas State University, Manhattan, Kansas 66506
OSTI ID:
5512868
Journal Information:
Phys. Rev. A; (United States), Journal Name: Phys. Rev. A; (United States) Vol. 37:4; ISSN PLRAA
Country of Publication:
United States
Language:
English