Monocentric close-coupling expansion to provide ejected electron distributions for ionization In atomic collisions
A new monocentric close-coupling expansion, in terms of spherical Bessel functions confined in a finite box, is presented and implemented for &pmacr;+H(1s) collisions. Besides total ionization cross sections, this method also provides reliable ejected electron distributions, which are beyond the scope of usual close-coupling expansions and basically confirm the recent classical description of Illescas and Riera [Phys. Rev. Lett. 80, 3029 (1998)].
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Centre Lasers Intenses et Applications, UMR 5107 du CNRS,Universite de Bordeaux-I, 351 Cours de la Liberation, F-33405 Talence, France.