Single electron capture by Li<sup>3+</sup> from He in low-energy collisions
L Opradolce; C Falcon; J I Casaubon; L Opradolce; Inst. de Astron. y Fisica del Espacio, Buenos Aires, Argentina; C Falcon; Inst. de Astron. y Fisica del Espacio, Buenos Aires, Argentina; J I Casaubon; Inst. de Astron. y Fisica del Espacio, Buenos Aires, Argentina
Журнал:
Journal of Physics B: Atomic and Molecular Physics
Дата:
1986-08-14
Аннотация:
The total cross section for single electron capture from He by Li<sup>3+</sup> ions has been calculated using the close-coupling technique in the impact energy range 1.5*10<sup>-4</sup>-43 keV. The model-potential method was used to determine the electronic energy curves of the (LiHe)<sup>3+</sup> molecule. The dynamic couplings between the molecular states were obtained by numerical differentiation of the model-Hamiltonian stationary wavefunctions. Depending on the impact energy, the collision dynamics were solved either by a full quantum-mechanical treatment or using the semiclassical impact parameter approximation. The total charge exchange cross section is in good agreement with the experimental results of Wirkner-Bott et al. (1981).
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