Comparison of single-electron removal processes in collisions of electrons, positrons, protons, and antiprotons with hydrogen and helium

Journal Article · Fri Sep 01 00:00:00 EDT 1989 · Physical Review (Section) A: General Physics; (USA)

DOI:https://doi.org/10.1103/PhysRevA.40.2330· OSTI ID:5555178

Schultz, D R ^[1]

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1. Department of Physics and Laboratory for Atomic and Molecular Research, University of Missouri-Rolla, Rolla, Missouri 65401 (US)

We present and compare total cross sections for single-electron removal in collisions of electrons, positrons, protons, and antiprotons with atomic hydrogen and helium. These cross sections have been calculated using the classical trajectory Monte Carlo technique in the velocity range of 0.5--7.0 a.u. (6.25--1224 keV/u). The cross sections are compared at equal collision velocities and exhibit differences arising from variations in mass and sign of charge of the projectile. At low and intermediate velocities these differences are large in both the ionization and charge transfer channels. At high velocities the single-ionization cross section for each of these singly charged particles becomes equal. However, the differences in the single-charge-transfer cross sections for positron and proton impact persist to very large velocities. We extend our previous work (Phys. Rev. A 38, 1866 (1988)) to explain these mass and sign of the charge effects in single-electron removal collisions.

• OSTI ID: 5555178
• Journal Information: Physical Review (Section) A: General Physics; (USA), Vol. 40:5; ISSN 0556-2791
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
HELIUM
ELECTRON-ATOM COLLISIONS
ION-ATOM COLLISIONS
POSITRON-ATOM COLLISIONS
HYDROGEN
HYDROGEN IONS 1 PLUS
ANTIPROTONS
CHARGED PARTICLES
COMPARATIVE EVALUATIONS
ELECTRON LOSS
ENERGY DEPENDENCE
TOTAL CROSS SECTIONS
ANTIBARYONS
ANTIMATTER
ANTINUCLEI
ANTINUCLEONS
ANTIPARTICLES
ATOM COLLISIONS
BARYONS
CATIONS
COLLISIONS
CROSS SECTIONS
ELECTRON COLLISIONS
ELEMENTARY PARTICLES
ELEMENTS
FERMIONS
FLUIDS
GASES
HADRONS
HYDROGEN IONS
ION COLLISIONS
IONS
NONMETALS
NUCLEI
NUCLEONS
POSITRON COLLISIONS
RARE GASES
640304* - Atomic
Molecular & Chemical Physics- Collision Phenomena