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arXiv · 0809.2163

Isoscaling as a measure of Symmetry Energy in the Lattice Gas Model

G. Lehaut·F. Gulminelli·O. Lopez
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Abstract

The energetic properties of nuclear clusters inside a low-density, finite-temperature medium are studied with a Lattice Gas Model including isospin dependence and Coulomb forces. Important deviations are observed respect to the Fisher approximation of an ideal gas of non-interacting clusters, but the global energetics can still be approximately expressed in terms of a simple modified energy-density functional. The multi-fragmentation regime appears dominated by combinatorial effects in this model, but the isoscaling of the largest fragment in low energy collisions appears a promising observable for the experimental measurement of the symmetry energy.

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G. Lehaut, F. Gulminelli, O. Lopez. 2008-09-12. Isoscaling as a measure of Symmetry Energy in the Lattice Gas Model. https://doi.org/10.1103/physrevlett.102.142503

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