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Dynamics of many-particle fragmentation in a Cellular Automaton model

Authors
  • Lejeune, A.
  • Perdang, J.
  • Richter, J.
Type
Published Article
Publication Date
Feb 07, 2003
Submission Date
Feb 07, 2003
Identifiers
DOI: 10.1103/PhysRevE.67.046214
Source
arXiv
License
Unknown
External links

Abstract

A 3D Cellular Automaton model developed by the authors to deal with the dynamics of N-body interactions has been adapted to investigate the head-on collision of two identical bound clusters of particles, and the ensuing process of fragmentation. The range of impact energies is chosen low enough, to secure that a compound bound cluster can be formed. The model is devised to simulate the laboratory set-up of fragmentation experiments as monitored by 4pi detectors. The particles interact via a Lennard-Jones potential. At low impact energies the numerical experiments following the dynamics of the individual particles indicate a phase of energy sharing among all the particles of the compound cluster. Fragments of all sizes are then found to evaporate from the latter cluster. The cluster sizes, measured in our set-up by simulated 4pi detectors, conform to a power law of exponent around 2.6.

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