Dynamical aspects of isoscaling

Abstract

The origin and dynamical evolution of isoscaling was studied using classical molecular dynamics simulations of ${}^{40}$Ca + ${}^{40}$Ca, ${}^{48}$Ca + ${}^{48}$Ca, and ${}^{52}$Ca + ${}^{52}$Ca, at beam energies ranging from $20MeV/A$ to $85MeV/A$. The analysis included a study of the time evolution of this effect. Isoscaling was observed to exist in these reactions from the very early primary isotope distributions (produced by highly {\it non-equilibrated} systems) all the way to asymptotic times. This indicates that isoscaling is independent of quantum effects and thermodynamical equilibrium. In summary, collision-produced isoscaling appears to be due more to the mere partitioning of the proton-neutron content of the participant nuclei, than to specific details of the reaction dynamics.

References in corpus (8)

• Isospin Fractionation in Nuclear Multifragmentation
• Determination of the Mean-Field Momentum-Dependence using Elliptic Flow
• Neutron-Proton Differential Flow as a Probe of Isospin-Dependence of Nuclear Equation of State
• Isospin fractionation and isoscaling in dynamical nuclear collisions
• Comparison of Canonical and Grand Canonical Models for selected multifragmentation data
• A Quasi-Classical Model of Intermediate Velocity Particle Production in Asymmetric Heavy Ion Reactions
• Dynamics and thermodynamics of fragment emission from excited sources
• Study of Isoscaling with Statistical Multifragmentation Models

Cited by in corpus (20)

• Recent Progress and New Challenges in Isospin Physics with Heavy-Ion Reactions
• Density dependence of the symmetry energy and the nuclear equation of state: A Dynamical and Statistical model perspective
• Temperature effects on the nuclear symmetry energy and symmetry free energy with an isospin and momentum dependent interaction
• Topological characterization of neutron star crusts
• Probing isospin- and momentum-dependent nuclear effective interactions in neutron-rich matter
• Evolution of the symmetry energy of hot neutron-rich matter formed in heavy-ion reactions
• Influence of statistical sequential decay on isoscaling and symmetry energy coefficient in a GEMINI simulation
• Effect of Coulomb Screening Length on Nuclear Pasta Simulations
• Beyond Nuclear Pasta: Phase Transitions and Neutrino Opacity of Non-Traditional Pasta
• Isospin-asymmetric nuclear matter
• Isoscaling and the nuclear EOS
• The Neutrino Opacity of Neutron Star Inner Crust
• Isoscaling in central Sn+Sn collisions at 270 MeV/u
• Geometrical aspects of isoscaling
• Dynamics of Fragment Formation in Neutron Rich Matter
• Finite size effects in Neutron Star and Nuclear matter simulations
• Reexamining the "finite-size" effects in isobaric yield ratios using a statistical abrasion-ablation model
• Density dependence of the "symmetry energy" in the lattice gas model
• Isoscaling and the high Temperature limit
• Fragmentation of Neutron Star Matter