Fully differential study of ionization in p + H2 collisions near electron—projectile velocity matching. (25th January 2016)

• Record Type: Journal Article
• Authors: Hasan, A; Arthanayaka, T; Lamichhane, B R; Sharma, S; Gurung, S; Remolina, J; Akula, S; Madison, D H; Ciappina, M F; Rivarola, R D; Schulz, M
• Is Part Of: Journal of physics. Volume 49:Number 4(2016:Feb. 15)
• Publication Date: 2016-01-25
• Subjects: Ionization -- energy-loss spectroscopy -- few-body problem -- cold target recoil-ion momentum spectroscopy; Atoms -- Periodicals; Molecules -- Periodicals; Optics -- Periodicals; Nuclear physics -- Periodicals; 539.6
• DOI: 10.1088/0953-4075/49/4/04LT01
• Languages: English
• ISSNs: 0953-4075

Abstract

Abstract: We have performed a kinematically complete experiment on ionization of H2 by 75 keV proton impact for electrons ejected with a speed close to the projectile speed. The fully differential data are compared to a three-body distorted wave and a continuum distorted wave—eikonal initial state calculation. Large discrepancies between experiment and theory, as well as between both calculations, are found. These probably arise from a strong coupling between the ionization and capture channels, which is not accounted for by theory.