Isospin Effects in Nuclear Multifragmentation

Abstract

We develop an improved Statistical Multifragmentation Model that provides the capability to calculate calorimetric and isotopic observables with precision. With this new model we examine the influence of nuclear isospin on the fragment elemental and isotopic distributions. We show that the proposed improvements on the model are essential for studying isospin effects in nuclear multifragmentation. In particular, these calculations show that accurate comparisons to experimental data require that the nuclear masses, free energies and secondary decay must be handled with higher precision than many current models accord.

arXiv comment46 pages, 16 figures

References in corpus (8)

• Isospin Fractionation in Nuclear Multifragmentation
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• Central Collisions of Au on Au at 150, 250 and 400 A MeV
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Cited by in corpus (32)

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• Comparison of statistical treatments for the equation of state for core-collapse supernovae
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• Symmetry energy of fragments produced in multifragmentation
• The Statistical Multifragmentation Model with Skyrme Effective Interactions
• Isospin fluctuations in spinodal decomposition
• Influence of secondary decay on odd-even staggering of fragment cross sections
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• Isoscaling in central Sn+Sn collisions at 270 MeV/u
• Microcanonical studies on isoscaling
• Statistical multifragmentation model with discretized energy and the generalized Fermi breakup. I. Formulation of the model
• Cooling Dynamics in Multi-fragmentation processes
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• Fragments' internal and kinetic temperatures in the framework of a Nuclear Statistical Multifragmentation Model
• Effects of geometric constraints on the nuclear multifragmentation process
• Influence of the density of states on the odd-even staggering in the charge distribution of the emitted fragments
• Dynamical and many-body correlation effects in the kinetic energy spectra of isotopes produced in nuclear multifragmentation
• Nuclear energy release from fragmentation
• Post breakup dynamics of fragments produced in nuclear multifragmentation
• Isotopic dependence of the fragments' internal temperatures observed in multifragment emission
• Many-particle correlations and Coulomb effects on temperatures from fragment momentum fluctuations
• Isobar correlations bearing information on the properties of hot disassembling nuclear sources
• A model for multifragmentation in heavy-ion reactions