Four-particle Dalitz plots to visualize atomic break-up processes

We introduce a new method to analyse four-body fragmentation processes, which is basically an extension of Dalitz plots commonly used in particle physics to analyse three-body fragmentation processes. It enables for the first time the presentation of multiple differential cross sections as a functio...

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Bibliographic Details
Published in:Journal of physics. B, Atomic, molecular, and optical physics Atomic, molecular, and optical physics, 2007-08, Vol.40 (15), p.3091-3099
Main Authors: Schulz, M, Fischer, D, Ferger, T, Moshammer, R, Ullrich, J
Format: Article
Language:English
Subjects:
Atom- och molekylfysik
Atomic and molecular collision processes and interactions
Atomic and molecular physics
electron-impact
Electronic excitation and ionization of atoms (including beam-foil excitation and ionization)
Exact sciences and technology
Fysik
helium
ion impact
NATURAL SCIENCES
NATURVETENSKAP
Physics
Scattering of atoms, molecules and ions
single ionization
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Description
Summary:We introduce a new method to analyse four-body fragmentation processes, which is basically an extension of Dalitz plots commonly used in particle physics to analyse three-body fragmentation processes. It enables for the first time the presentation of multiple differential cross sections as a function of all four fragments without loss of any part of the total cross section in the integral spectrum. As a first example, the technique is applied to ionization processes in atomic collisions.
ISSN:0953-4075
1361-6455
1361-6455
DOI:10.1088/0953-4075/40/15/009