DWBA-G calculations of electron impact ionization of noble gas atoms

• Published in: Journal of physics. B, Atomic, molecular, and optical physics Vol. 41; no. 14; pp. 145201 - 145201 (10)
• Main Authors: Kheifets, A S, Naja, A, Casagrande, E M Staicu, Lahmam-Bennani, A
• Format: Journal Article
• Language: English
• Published: Bristol IOP Publishing 28.07.2008; Institute of Physics
• Subjects: Atomic and molecular collision processes and interactions; Atomic and molecular physics; Atomic excitation and ionization by electron impact; Electron scattering; Exact sciences and technology; Physics; Postcollisional interaction; Electron impact ionization; Momentum transfer; Theoretical study; Excitation energy transfer; Distorted wave approximation; Neon Atoms; Energy transfer; Born approximation; Comparative study; Electron-atom collisions; Rare gases Atoms
• ISSN: 0953-4075; 1361-6455
• DOI: 10.1088/0953-4075/41/14/145201

We perform calculations of electron impact ionization of noble gas atoms within the distorted wave Born approximation (DWBA) corrected by the Gamow factor (G) to account for the post-collision interaction. We make an extensive comparison with experimental data on He 1s2, Ne 2s2, 2p6 and Ar 3p6 under kinematics characterized by large energy transfer and close to minimum momentum transfer from the projectile to the target. For all atoms, good agreement between theory and experiment is achieved. In the case of Ar, the disagreement of experimental data with theory reported earlier by Catoire et al (2006 J. Phys. B: At. Mol. Opt. Phys. 39 2827) is reconciled.