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

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 with respect to the Fisher approximation of an ideal gas of noninteracting clusters, but a simple modified energy-density functional can still describe the global energetics. The multifragmentation regime is dominated by combinatorial effects, but the isoscaling of the largest fragment appears to be a promising observable for the experimental measurement of the symmetry energy.
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Contributeur : Sandrine Guesnon <>
Soumis le : vendredi 27 novembre 2009 - 11:10:55
Dernière modification le : mardi 19 février 2019 - 10:08:05

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G. Lehaut, F. Gulminelli, O. Lopez. Isoscaling as a Measure of Symmetry Energy in the Lattice Gas Model. Physical Review Letters, American Physical Society, 2009, 102, pp.142503. ⟨10.1103/PhysRevLett.102.142503⟩. ⟨in2p3-00378550⟩



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