Transport Model Simulations of Projectile Fragmentation Reactions at 140 MeV/nucleon

Abstract

The collisions in four different reaction systems using ${}^{40,48}$Ca and ${}^{58,64}$Ni isotope beams and a Be target have been simulated using the Heavy Ion Phase Space Exploration and the Antisymmetrized Molecular Dynamics models. The present study mainly focuses on the model predictions for the excitation energies of the hot fragments and the cross sections of the final fragments produced in these reactions. The effects of various factors influencing the final fragment cross sections, such as the choice of the statistical decay code and its parameters have been explored. The predicted fragment cross sections are compared to the projectile fragmentation cross sections measured with the A1900 mass separator. At $E/A=140$ MeV, reaction dynamics can significantly modify the detection efficiencies for the fragments and make them different from the efficiencies applied to the measured data reported in the previous work. The effects of efficiency corrections on the validation of event generator codes are discussed in the context of the two models.

arXiv comment28 pages, 13 figures

References in corpus (9)

• Modified Empirical Parametrization of Fragmentation Cross Sections
• Determination of the Mean-Field Momentum-Dependence using Elliptic Flow
• Isospin fractionation and isoscaling in dynamical nuclear collisions
• Symmetry energy for fragmentation in dynamical nuclear collisions
• Projectile fragmentation reactions and production of nuclei near the neutron drip-line
• Fragmentation cross-sections and binding energies of neutron-rich nuclei
• Cross-sections of neutron rich nuclei from projectile fragmentation: canonical thermodynamic model estimates
• Extrapolation of neutron-rich isotope cross-sections from projectile fragmentation
• Multifragmentation and Symmetry Energy Studied with AMD

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