Fully differential study of wave packet scattering in ionization of helium by proton impact. (8th June 2016)

• Record Type: Journal Article
• Authors: Arthanayaka, T; Lamichhane, B R; Hasan, A; Gurung, S; Remolina, J; Borbély, S; Járai-Szabó, F; Nagy, L; Schulz, M
• Is Part Of: Journal of physics. Volume 49:Number 13(2016:Jul. 01)
• Publication Date: 2016-06-08
• Subjects: projectile coherence -- few-body problem -- atomic collisions -- ionization; Atoms -- Periodicals; Molecules -- Periodicals; Optics -- Periodicals; Nuclear physics -- Periodicals; 539.6
• DOI: 10.1088/0953-4075/49/13/13LT02
• Languages: English
• ISSNs: 0953-4075

Abstract

Abstract: We present a fully differential study of projectile coherence effects in ionization in p + He collisions. The experimental data are qualitatively reproduced by a non-perturbative ab initio time-dependent model, which treats the projectile coherence properties in terms of a wave packet. A comparison between first- and higher-order treatments shows that the observed interference structures are primarily due to a coherent superposition of different impact parameters leading to the same scattering angle. Higher-order contributions have a significant effect on the interference term.