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Charge-transfer cross sections for. cap alpha. -particles colliding with hydrogenic ions

Journal Article · · Phys. Rev. A; (United States)
The Coulomb-projected Born approximation has been used to calculate the total charge-transfer cross sections for ..cap alpha.. particles (He/sup 2 +/) colliding with hydrogenic systems at medium and high energies. The present results overestimate the recent experimental data of Hvelplund et al. for the system He/sup 2 +/+H in the energy range 0.5 to 5 MeV. Further, it is seen that the present scaled results (Z/sup 6//sub T/sigma) for capture into the n = 1 state follow the universal curve in the energy range E/Z/sup 2//sub T/> or =100 keV when plotted against E/Z/sup 2//sub T/ and are in agreement with the scaling formula of Nikolaev.
Research Organization:
Department of Physics, University of Roorkee, Roorkee-247672, India
OSTI ID:
6804841
Journal Information:
Phys. Rev. A; (United States), Journal Name: Phys. Rev. A; (United States) Vol. 26:1; ISSN PLRAA
Country of Publication:
United States
Language:
English