Strong onset of ionization in slow Xe[sup [ital q]+]-Xe collisions at very high [ital q]

Journal Article · Tue Jun 01 04:00:00 EDT 1993 · Physical Review A; (United States)

DOI:https://doi.org/10.1103/PhysRevA.47.R4551· OSTI ID:6461137

Cederquist, H; Biedermann, C; Selberg, N; Beebe, E; Pajek, M; Barany, A ^[1]

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1. Manne Siegbahn Institute of Physics, S-104 05 Stockholm (Sweden)

We have discovered that ionization without accompanying electron capture is an important process in slow ([ital v][similar to]0.1--0.2 a.u.) Xe[sup [ital q]+]-Xe collisions at very high projectile charge ([ital q][gt]25). The measured absolute cross sections, although between one and two orders of magnitude lower than the ones for single-electron capture, increase rapidly with [ital q] when [ital q][gt]25 and reach a level of [similar to]1[times]10[sup [minus]15] cm[sup 2] for [ital q][gt]30. We argue that the reaction mechanism for ionization of the heavier rare gases involves the formation of core-excited, autoionizing, neutral target states.

• OSTI ID: 6461137
• Journal Information: Physical Review A; (United States), Journal Name: Physical Review A; (United States) Vol. 47:6; ISSN 1050-2947; ISSN PLRAAN
• Country of Publication: United States
• Language: English

Related Subjects

664300* -- Atomic & Molecular Physics-- Collision Phenomena-- (1992-)
74 ATOMIC AND MOLECULAR PHYSICS
ATOM COLLISIONS
CAPTURE
CATIONS
CHARGE STATES
CHARGED PARTICLES
COLLISIONS
ELECTRON CAPTURE
ELEMENTS
FLUIDS
GASES
ION COLLISIONS
ION-ATOM COLLISIONS
IONIZATION
IONS
MULTICHARGED IONS
NONMETALS
RARE GASES
XENON