Differential transfer ionization cross sections for 50--175-keV proton-helium collisions

Journal Article · Fri Jul 01 04:00:00 EDT 1994 · Physical Review A; (United States)

DOI:https://doi.org/10.1103/PhysRevA.50.337· OSTI ID:7295903

Bross, S W; Bonham, S M; Gaus, A D; Peacher, J L; Vajnai, T; Schulz, M ^[1]; Schmidt-Boecking, H ^[2]

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1. Department of Physics and the Laboratory for Atomic and Molecular Research, University of Missouri-Rolla, Rolla, Missouri 65401 (United States)
2. Institut fuer Kernphysik, Universitaet Frankfurt, 6000 Frankfurt (Germany)

We have measured coincidences between neutralized projectiles and He recoil ions for 50--175-keV proton-helium collisions. From the data we obtained transfer ionization (TI) cross sections differential in the projectile scattering angle. Laboratory scattering angles range from 0 to 2.0 mrad. The experimental method allowed separation of the postcollision charge states of the target atoms. The ratio of the cross sections for TI to the sum of TI and single capture, [ital F], is presented as a function of projectile scattering angle. Comparison is made to previous measurements of this ratio where data is available. The differential cross sections are compared to dynamical classical trajectory Monte Carlo (dCTMC) calculations. Agreement in the shape of the differential cross sections is good between the theory and measurement over the entire energy range.

• OSTI ID: 7295903
• Journal Information: Physical Review A; (United States), Journal Name: Physical Review A; (United States) Vol. 50:1; ISSN 1050-2947; ISSN PLRAAN
• Country of Publication: United States
• Language: English

Related Subjects

664300* -- Atomic & Molecular Physics-- Collision Phenomena-- (1992-)
74 ATOMIC AND MOLECULAR PHYSICS
ATOM COLLISIONS
BARYONS
COINCIDENCE METHODS
COLLISIONS
COUNTING TECHNIQUES
CROSS SECTIONS
DIFFERENTIAL CROSS SECTIONS
ELECTRON TRANSFER
ELECTRON-ELECTRON INTERACTIONS
ELEMENTARY PARTICLES
ELEMENTS
ENERGY RANGE
FERMIONS
FLUIDS
GASES
HADRONS
HELIUM
INTERACTIONS
ION COLLISIONS
ION-ATOM COLLISIONS
IONIZATION
KEV RANGE
KEV RANGE 10-100
KEV RANGE 100-1000
LEPTON-LEPTON INTERACTIONS
NONMETALS
NUCLEONS
PARTICLE INTERACTIONS
PROTONS
RARE GASES
RECOILS