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Classical ionization and charge-transfer cross sections for H/sup +/ + He and H/sup +/ + Li/sup +/ collisions with consideration of model interactions

Journal Article · · Phys. Rev. A; (United States)
;

The three-body system is analyzed in relation to the calculation of atomic scattering cross sections. A method is presented to generate the initial electronic conditions for the classical-trajectory Monte Carlo method in the case where the active electron is subject to non-Coulomb interactions. The method is then applied to study the collisions of H/sup +/ with He and Li/sup +/ targets in the intermediate- to high-energy range. Single-electron capture and single-ionization total cross sections are presented for both collision systems. In the case of He targets, total cross sections for double ionization and singly differential cross sections for free-electron production are also calculated. Cross sections and initial electronic distributions are obtained with both Coulomb and model interactions and compared. Good agreement is found between theoretical and experimental results, except for the double ionization of He.

Research Organization:
Instituto de Astronomia y Fisica del Espacio, Consejo Nacional de Investigaciones Cientificas y Tecnicas, C. C. 67, Suc. 28, 1428 Buenos Aires, Argentina
OSTI ID:
5679259
Journal Information:
Phys. Rev. A; (United States), Journal Name: Phys. Rev. A; (United States) Vol. 33:6; ISSN PLRAA
Country of Publication:
United States
Language:
English

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Related Subjects

640304* -- Atomic
Molecular & Chemical Physics-- Collision Phenomena
74 ATOMIC AND MOLECULAR PHYSICS
ATOM COLLISIONS
CATIONS
CHARGE EXCHANGE
CHARGED PARTICLES
COLLISIONS
COULOMB FIELD
CROSS SECTIONS
ELECTRIC FIELDS
ELEMENTS
FLUIDS
GASES
HELIUM
HYDROGEN IONS
HYDROGEN IONS 1 PLUS
ION COLLISIONS
ION-ATOM COLLISIONS
ION-ION COLLISIONS
IONIZATION
IONS
LITHIUM IONS
MANY-BODY PROBLEM
MONTE CARLO METHOD
NONMETALS
RARE GASES
THREE-BODY PROBLEM