Influence of the post-collision interaction on interference effects in ionization of H2 by proton impact. (21st July 2015)

• Record Type: Journal Article
• Authors: Arthanayaka, T P; Sharma, S; Lamichhane, B R; Hasan, A; Remolina, J; Gurung, S; Sarkadi, L; Schulz, M
• Is Part Of: Journal of physics. Volume 48:Number 17(2015:Sep. 01)
• Publication Date: 2015-07-21
• Subjects: ionization -- molecular targets -- coherence -- interference; Atoms -- Periodicals; Molecules -- Periodicals; Optics -- Periodicals; Nuclear physics -- Periodicals; 539.6
• DOI: 10.1088/0953-4075/48/17/175204
• Languages: English
• ISSNs: 0953-4075

Abstract

Abstract: We have performed a kinematically complete experiment on ionization of H2 by 75 keV proton impact leading to electrons with a speed equal to the projectile speed. By comparing cross sections measured with a coherent and an incoherent projectile beam we were able to perform a detailed analysis of interference effects. We found that the interference structure is significantly more damped than for a smaller electron energy studied previously. This damping is further increased if kinematic conditions are selected which favor a strong role of the post-collisional interaction between the scattered projectile and the electron ejected to the continuum by a preceding primary interaction with the projectile.