Isospin diffusion in semi-peripheral ${}^{58}Ni$ + ${}^{197}Au$ collisions at intermediate energies (II): Dynamical simulations

Abstract

We study isospin effects in semi-peripheral collisions above the Fermi energy by considering the symmetric ${}^{58}Ni$ + ${}^{58}Ni$ and the asymmetric reactions ${}^{58}Ni$ + ${}^{197}Au$ over the incident energy range 52-74 A MeV. A microscopic transport model with two different parameterizations of the symmetry energy term is used to investigate the isotopic content of pre-equilibrium emission and the N/Z diffusion process. Simulations are also compared to experimental data obtained with the INDRA array and bring information on the degree of isospin equilibration observed in Ni + Au collisions. A better overall agreement between data and simulations is obtained when using a symmetry term which linearly increases with nuclear density.

References in corpus (17)

• Determination of the Equation of State of Dense Matter
• Reaction Dynamics with Exotic Beams
• Determination of the stiffness of the nuclear symmetry energy from isospin diffusion
• Isospin Fractionation in Nuclear Multifragmentation
• Equation of state of asymmetric nuclear matter and collisions of neutron-rich nuclei
• Neutron and Proton Transverse Emission Ratio Measurements and the Density Dependence of the Asymmetry Term of the Nuclear Equation of State
• Nuclear multifragmentation and phase transition for hot nuclei
• Isospin effects in Nuclear Fragmentation
• Nuclear Isospin Diffusivity
• The influence of cluster emission and the symmetry energy on neutron-proton spectral double ratios
• Double neutron/proton ratio of nucleon emissions in isotopic reaction systems as a robust probe of nuclear symmetry energy
• Fast nucleon emission as a probe of the isospin momentum dependence
• Isospin Transport at Fermi Energies
• Symmetry energy and the isospin dependent equation of state
• Isospin Dynamics in Peripheral Heavy Ion Collisions at Fermi Energies
• Isospin diffusion in semi-peripheral ${}^{58}Ni$ + ${}^{197}Au$ collisions at intermediate energies (I): Experimental results
• IMF isotopic properties in semi-peripheral collisions at Fermi energies

Cited by in corpus (20)

• Probing the Nuclear Symmetry Energy with Heavy Ion Collisions
• Isospin Diffusion and Equilibration for Sn+Sn collisions at E/A=35 MeV
• Correlations between emission timescale of fragments and isospin dynamics in ${}^{124}$Sn+${}^{64}$Ni and ${}^{112}$Sn+${}^{58}$Ni reactions at 35 AMeV
• Experimental effects on dynamics and thermodynamics in nuclear reactions on the symmetry energy as seen by the CHIMERA 4$\pi$ detector
• Isospin diffusion in semi-peripheral ${}^{58}Ni$ + ${}^{197}Au$ collisions at intermediate energies (I): Experimental results
• Isospin transport in 84Kr + 112,124Sn collisions at Fermi energies
• Fluctuations and Symmetry Energy in Nuclear Fragmentation Dynamics
• First results from the INDRA-FAZIA apparatus on isospin diffusion in ${}^{58,64}$Ni+${}^{58,64}$Ni systems at Fermi energies
• New isospin e ffects in central heavy-ion collisions at Fermi energies
• Isospin equilibration in multinucleon transfer reaction at near-barrier energies
• Probing the nuclear equation of state in heavy-ion collisions at Fermi energy in isospin-sensitive exclusive experiments
• Isospin effects and symmetry energy studies with INDRA
• Theoretical predictions of experimental observables sensitive to the symmetry energy: Results of the SMF transport model
• Experimental study of the isospin transport with 40,48 Ca+ 40,48 Ca reactions at 35 MeV/nucleon
• Experimental study of the ${}^{40,48}$Ca+ ${}^{40,48}$Ca reactions at 35 MeV/nucleon
• Temperature of projectile like fragments in heavy ion collisions
• Study of quasi-projectile properties at Fermi energies in 48Ca projectile systems
• Isospin Diffusion in ${}^{58}$Ni-Induced Reactions at Intermediate Energies
• Dynamical Phase Trajectories in Baryon and Isospin Density Spaces
• Isospin transport in 84Kr+112,124Sn reactions at Fermi energies