Isospin effects and the density dependence of the nuclear symmetry energy

Abstract

The density dependence of the nuclear symmetry energy is inspected using the Statistical Multifragmentation Model with Skyrme effective interactions. The model consistently considers the expansion of the fragments' volumes at finite temperature at the freeze-out stage. By selecting parameterizations of the Skyrme force that lead to very different equations of state for the symmetry energy, we investigate the sensitivity of different observables to the properties of the effective forces. Our results suggest that, in spite of being sensitive to the thermal dilation of the fragments' volumes, it is difficult to distinguish among the Skyrme forces from the isoscaling analysis. On the other hand, the isotopic distribution of the emitted fragments turns out to be very sensitive to the force employed in the calculation.

arXiv comment5 pages, 4 figures

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Cited by in corpus (11)

• Constraints on the symmetry energy and neutron skins from experiments and theory
• Effect of isospin dependent cluster recognition on the observables in heavy ion collisions
• Finite size effects in isobaric ratios
• Shear viscosity to entropy density ratio in nuclear multifragmentation
• Influence of secondary decay on odd-even staggering of fragment cross sections
• Statistical multifragmentation model with discretized energy and the generalized Fermi breakup. I. Formulation of the model
• Isovector channel of quark-meson-coupling model and its effect on symmetry energy
• Symmetry energy effects on isovector properties of neutron rich nuclei with a Thomas-Fermi approach
• Influence of the density of states on the odd-even staggering in the charge distribution of the emitted fragments
• Post breakup dynamics of fragments produced in nuclear multifragmentation
• Isobar correlations bearing information on the properties of hot disassembling nuclear sources