Single ionization of CH{sub 4} by bare ions: Fully differential cross sections

Journal Article · Sun Aug 15 00:00:00 EDT 2010 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.82.022712· OSTI ID:21448509

Fernandez-Menchero, L ^[1]; Otranto, S ^[1]

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1. Consejo Nacional de Investigaciones Cientificas y Tecnicas and Dto. de Fisica, Universidad Nacional del Sur, Avenida Alem 1253, 8000 Bahia Blanca-Buenos Aires (Argentina)

A theoretical study of fully differential cross sections for the single ionization of CH{sub 4} by collisions with H{sup +}, He{sup 2+}, and C{sup 6+} ions at energies in the order of MeV/amu is presented. We work in terms of the Born-3DW model, which considers a non-Coulomb central potential for the interaction of the active electron with the molecular core. Results obtained with the Born-3DW model are compared to those obtained with the Born-C3 model, which assumes this potential as purely Coulombic. The anisotropic potential of the CH{sub 4} molecule is smoothed through an angular integration, and results are averaged over all the possible orientations of the target molecule. Results for the lesser bound molecular orbitals (1T and 2A{sub 1}) are presented and discussed for different projectile momentum transfers for the coplanar geometry.

• OSTI ID: 21448509
• Journal Information: Physical Review. A, Vol. 82, Issue 2; Other Information: DOI: 10.1103/PhysRevA.82.022712; (c) 2010 The American Physical Society; ISSN 1050-2947
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
ANISOTROPY
CARBON IONS
CENTRAL POTENTIAL
DIFFERENTIAL CROSS SECTIONS
ELECTRONS
HELIUM IONS
HYDROGEN IONS 1 PLUS
IONIZATION
ION-MOLECULE COLLISIONS
METHANE
MEV RANGE
MOLECULES
MOMENTUM TRANSFER
ORIENTATION
ALKANES
CATIONS
CHARGED PARTICLES
COLLISIONS
CROSS SECTIONS
ELEMENTARY PARTICLES
ENERGY RANGE
FERMIONS
HYDROCARBONS
HYDROGEN IONS
ION COLLISIONS
IONS
LEPTONS
MOLECULE COLLISIONS
ORGANIC COMPOUNDS
POTENTIALS