Temperature effects in the nuclear isoscaling

Abstract

The properties of the nuclear isoscaling at finite temperature are investigated and the extent to which its parameter $\alpha$ holds information on the symmetry energy is examined. We show that, although finite temperature effects invalidate the analytical formulas that relate the isoscaling parameter $\alpha$ to those of the mass formula, the symmetry energy remains the main ingredient that dictates the behavior of $\alpha$ at finite temperatures, even for very different sources. This conclusion is not obvious as it is not true in the vanishing temperature limit, where analytical formulas are available. Our results also reveal that different statistical ensembles lead to essentially the same conclusions based on the isoscaling analysis, for the temperatures usually assumed in theoretical calculations in the nuclear multifragmentation process.

5 pages, 5 figures

References in corpus (8)

• Experimental determination of the symmetry energy of a low density nuclear gas
• Temperature effects on the nuclear symmetry energy and symmetry free energy with an isospin and momentum dependent interaction
• Tracing the evolution of the symmetry energy of hot nuclear fragments from the compound nucleus towards multifragmentation
• Probing the symmetry energy from the nuclear isoscaling
• Evolution of the symmetry energy of hot neutron-rich matter formed in heavy-ion reactions
• Isospin dependent thermodynamics of fragmentation
• Multifragmentation and the symmetry term of the nuclear equation of state
• Density dependence of symmetry free energy of hot nuclei

Cited by in corpus (1)

• Isospin effects and the density dependence of the nuclear symmetry energy