Light-particle single ionization of argon: Influence of the projectile charge sign

Journal Article · Wed Jul 15 00:00:00 EDT 2009 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.80.012714· OSTI ID:21313275

Otranto, S ^[1]; Olson, R E ^[2]

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1. CONICET and Departamento de Fisica, Universidad Nacional del Sur, 8000 Bahia Blanca (Argentina)
2. Department of Physics, Missouri University of Science and Technology, Rolla, Missouri 65409 (United States)

The ionization of the 3p orbital of argon by incident electrons and positrons is studied by means of the post version of the continuum distorted wave-eikonal initial-state model. Results are presented at both 200 and 500 eV impact energies for conditions amenable to present experiments. Differences in the fully differential cross sections (FDCSs) are analyzed and the influence of the projectile charge sign on the emission dynamics is discussed. The FDCSs are found to display the classic binary plus recoil peak structure at 500 eV, but transition to a more complicated four-lobed structure at the lower impact energy.

• OSTI ID: 21313275
• Journal Information: Physical Review. A, Vol. 80, Issue 1; Other Information: DOI: 10.1103/PhysRevA.80.012714; (c) 2009 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 1050-2947
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
ARGON
DIFFERENTIAL CROSS SECTIONS
DISTORTED WAVE THEORY
EIKONAL APPROXIMATION
ELECTRON-ATOM COLLISIONS
ELECTRONS
EMISSION
EV RANGE 100-1000
IONIZATION
PARTICLES
PEAKS
POSITRON-ATOM COLLISIONS
POSITRONS
RECOILS