Statistical Models of Nuclear Fragmentation

Abstract

A method is presented that allows exact calculations of fragment multiplicity distributions for a canonical ensemble of non-interacting clusters. Fragmentation properties are shown to depend on only a few parameters. Fragments are shown to be copiously produced above the transition temperature. At this transition temperature, the calculated multiplicity distributions broaden and become strongly super-Poissonian. This behavior is compared to predictions from a percolation model. A corresponding microcanonical formalism is also presented.

12 pages, 5 figures

References in corpus (6)

• A study of the phase transition in the usual statistical model for nuclear multifragmentation
• Fermionic Molecular Dynamics
• Quantum Fluctuation Effects on Nuclear Fragment Formation
• Fragments in Gaussian Wave-Packet Dynamics with and without correlations
• Correlations in Nuclear Arrhenius-Type Plots
• Fragment Multiplicity Distributions, a Signal of True Nuclear Multifragmentation

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• Multiplicity Distributions of Intermediate Mass Fragments in the Thermodynamic Model
• Break-up fragment topology in statistical multifragmentation models