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

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Cited by in corpus (11)

• Isospin dependent multifragmentation of relativistic projectiles
• The equation of state and symmetry energy of low density nuclear matter
• Isobaric Yield Ratio Difference in Heavy-ion Collisions, and Comparison to Isoscaling
• Temperature determined by isobaric yield ratio in heavy-ion collisions
• Finite size effects in isobaric ratios
• Chemical Property of Colliding Sources in 124,136Xe and 112,124Sn Induced Collisions in Isobaric Ratio Difference and Isoscaling Methods
• Isospin effects and the density dependence of the nuclear symmetry energy
• Isoscaling in central Sn+Sn collisions at 270 MeV/u
• Improved Thermometer from Intermediate Mass Fragments in Heavy-Ion Collisions with Isobaric Yield Ratio Difference
• Influence of the density of states on the odd-even staggering in the charge distribution of the emitted fragments
• Isobar correlations bearing information on the properties of hot disassembling nuclear sources