Density fluctuations and multifragmentation of nuclear matter

Abstract

The density fluctuations of nuclear matter are studied within a mean-field model in wich fluctuations are generated by an external stochastic field. The constraints imposed on the random force by the fluctuation-dissipation theorem are analyzed. It is shown that in the proximity of the borders of the spinodal region the assumption of a white-noise stochastic field can be reliably used. The domain distribution of the liquid phase in the spinodal decomposition of nuclear matter is derived. The related distribution of fragment sizes compares favourably with the experimental fragment distribution observed in heavy ion collisions.

20 RevTex pages, 7 Postscript figures. Submitted to Phys. Rev. C

References in corpus (7)

• Statistical Multifragmentation in Central Au+Au Collisions at 35 MeV/u
• Antisymmetrized molecular dynamics of wave packets with stochastic incorporation of Vlasov equation
• Multifragmentation in Xe(50A MeV)+Sn Confrontation of theory and data
• Fermionic Molecular Dynamics
• Pre-Equilibrium Particle Emission and Critical Exponent Analysis
• A self-consistent treatment of damped motion for stable and unstable collective modes
• Fragment Multiplicity Distributions, a Signal of True Nuclear Multifragmentation

Cited by in corpus (6)

• Nuclear multifragmentation and phase transition for hot nuclei
• Isospin fluctuations in spinodal decomposition
• Inhomogeneity growth in two-component fermionic systems
• Density dependence of isospin observables in spinodal decomposition
• Low-energy modes of spin-imbalanced Fermi gases in BCS phase
• Spinodal decomposition of expanding nuclear matter and multifragmentation