Probing the symmetry energy from the nuclear isoscaling

Abstract

Using different parameterizations of the nuclear mass formula, we study the sensitivity of the isoscaling parameters to the mass formula employed in grand-canonical calculations. Previous works on isoscaling have suggested that the symmetry energy implied in such calculations is anomalously smaller than that suggested by fits to nuclear masses. We show that surface corrections to the symmetry energy naturally broadens the isotopic distribution thus allowing for values of the symmetry energy which more closely match those obtained from nuclear masses.

7 pages, 4 figures

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Cited by in corpus (23)

• Constraints on the density dependence of the symmetry energy
• Neutron skin thickness in droplet model with surface width dependence: indications of softness of the nuclear symmetry energy
• Dense Nuclear Matter Equation of State from Heavy-Ion Collisions
• Laboratory Tests of Low Density Astrophysical Equations of State
• Isospin dependent multifragmentation of relativistic projectiles
• Properties of the nuclear medium
• Statistical approach for supernova matter
• The many facets of the (non relativistic) Nuclear Equation of State
• The Nuclear Matter Symmetry Energy at $0.03\le \rho /{\rho }_0\le 0.2$
• The equation of state and symmetry energy of low density nuclear matter
• Comparison of statistical treatments for the equation of state for core-collapse supernovae
• Finite size effects in isobaric ratios
• Shear viscosity to entropy density ratio in nuclear multifragmentation
• Symmetry energy of fragments produced in multifragmentation
• Temperature effects in the nuclear isoscaling
• Influence of secondary decay on odd-even staggering of fragment cross sections
• The Statistical Multifragmentation Model with Skyrme Effective Interactions
• Isospin effects and the density dependence of the nuclear symmetry energy
• Ratio of shear viscosity to entropy density in multifragmentation of Au + Au
• Isoscaling in statistical fragment emission in an extended compound nucleus model
• Influence of the density of states on the odd-even staggering in the charge distribution of the emitted fragments
• Temperature dependence of nuclear matter generalized isovector symmetry energy with Skyrme-type interactions
• Isospin effects in a covariant transport approach to spallation reactions: Analysis of $p+Fe$ and $Pb$ reactions at 0.8, 1.2 and 1.6 GeV