Quasiclassical-trajectory Monte Carlo methods for collisions with two-electron atoms
- Theoretical Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States)
A quasiclassical-trajectory Monte Carlo (QTMC-EB) model is proposed to extend the classical-trajectory Monte Carlo (CTMC) method to targets having more than one electron. Quasiclassical stability is achieved via constraining potentials that enforce lower {ital energy} {ital bounds} on the one-electron dynamics. Cross sections for all possible electronic rearrangements (single and double electron transfer, single and double ionization, and transfer ionization) in H{sup +}+H, H{sup +}+He, He{sup 2+}+He, and Li{sup 3+}+He collisions are calculated with this model and with the previously proposed model (QTMC-KW) of Kirschbaum and Wilets [Phys. Rev. A {bold 21}, 834 (1980)]. The results are compared with accurate experimental data. The regime of validity for the two-electron targets is found to be similar to that of the usual CTMC model for one-electron targets. {copyright} {ital 1996 The American Physical Society.}
- OSTI ID:
- 285941
- Journal Information:
- Physical Review A, Journal Name: Physical Review A Journal Issue: 1 Vol. 54; ISSN PLRAAN; ISSN 1050-2947
- Country of Publication:
- United States
- Language:
- English
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