Scattering correlation in double ionization of helium by fast antiprotons and protons

Journal Article · Mon Feb 01 04:00:00 EST 1988 · Phys. Rev. A; (United States)

DOI:https://doi.org/10.1103/PhysRevA.37.992· OSTI ID:5512769

Vegh, L

The difference between the double-ionization cross sections of antiprotons and protons colliding with helium may be explained by the distortion of the two-electron wave function during the collision. The distortion is related to the presence of electron-electron correlations and depends on the sign of the projectile charge. The proposed correlation effect requires an at-least-partly-adiabatic behavior for target electrons. The existence of adiabaticity in high-energy large-impact-parameter collisions is discussed. By building in the effect of distortion into the center-of-charge interaction formulation of the independent-particle model, the calculated cross sections are in agreement with the experimental values.

• Research Organization: Institute of Nuclear Research of the Hungarian Academy of Sciences, Post Office Box 51, H-4001 Debrecen, Hungary
• OSTI ID: 5512769
• Journal Information: Phys. Rev. A; (United States), Journal Name: Phys. Rev. A; (United States) Vol. 37:3; ISSN PLRAA
• Country of Publication: United States
• Language: English

Related Subjects

640304* -- Atomic
Molecular & Chemical Physics-- Collision Phenomena
74 ATOMIC AND MOLECULAR PHYSICS
ANTIBARYONS
ANTIMATTER
ANTINUCLEI
ANTINUCLEONS
ANTIPARTICLES
ANTIPROTONS
ATOM COLLISIONS
BARYONS
CATIONS
CHARGED PARTICLES
COLLISIONS
COMPARATIVE EVALUATIONS
CORRELATIONS
ELECTRON CORRELATION
ELEMENTARY PARTICLES
ELEMENTS
FERMIONS
FLUIDS
FUNCTIONS
GASES
HADRONS
HELIUM
HYDROGEN IONS
HYDROGEN IONS 1 PLUS
ION COLLISIONS
ION-ATOM COLLISIONS
IONIZATION
IONS
MULTICHARGED IONS
NONMETALS
NUCLEI
NUCLEONS
PROTONS
RARE GASES
WAVE FUNCTIONS