Calculation of the differential cross section for electron capture in fast ion-atom collisions

Journal Article · Mon Mar 01 04:00:00 EST 1982 · Phys. Rev. A; (United States)

DOI:https://doi.org/10.1103/PhysRevA.25.1456· OSTI ID:5424200

Ho, T S; Eichler, J; Lieber, M; Chan, F T

The approach to electron capture developed to Chan and Eichler is combined with the optical eikonal approximation for describing the effect of the internuclear potential on the projectile trajectory. In this way, a closed-form expression is derived for the differential cross section for 1s..-->..nlm capture. Numerical calculations have been performed for the reaction H/sup +/+H(1s)..-->..H+H/sup +/ at collision energies of 25, 60, and 125 keV. Good agreement is obtained with the recent data of Martin et al. by using trajectories undeflected by the internuclear potential at small deflection angles and Coulomb-deflected trajectories at large deflection angles.

• Research Organization: Bereich Kern- und Strahlenphysik, Hahn-Meitner-Institut fuer Kernforschung Berlin GmbH, D-1000 Berlin 39, Federal Republic of Germany
• OSTI ID: 5424200
• Journal Information: Phys. Rev. A; (United States), Journal Name: Phys. Rev. A; (United States) Vol. 25:3; ISSN PLRAA
• Country of Publication: United States
• Language: English

Related Subjects

640304* -- Atomic
Molecular & Chemical Physics-- Collision Phenomena
74 ATOMIC AND MOLECULAR PHYSICS
ATOM COLLISIONS
CAPTURE
CHARGED PARTICLES
COLLISIONS
COULOMB FIELD
CROSS SECTIONS
DATA
DIFFERENTIAL CROSS SECTIONS
EIKONAL APPROXIMATION
ELECTRIC FIELDS
ELECTRON CAPTURE
ELEMENTS
ENERGY RANGE
HYDROGEN
HYDROGEN IONS
INFORMATION
ION COLLISIONS
ION-ATOM COLLISIONS
IONS
KEV RANGE
KEV RANGE 10-100
KEV RANGE 100-1000
NONMETALS
NUMERICAL DATA
POTENTIALS
THEORETICAL DATA
TRAJECTORIES