Density fluctuations and multifragmentation of nuclear matter

Details Density fluctuations and multifragmentation of nuclear matter Density fluctuations and multifragmentation of nuclear matter

2000-07-03

arxiv.org/abs/nucl-th/0007001v1

Phys.Rev. C62 (2000) 044611

Physics

Nuclear Physics

Nuclear Theory

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

Scientific paper

10.1103/PhysRevC.62.044611

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.

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