Establishes chi^2-dissipation identities, spectral decomposition of Lyapunov functions, and explicit KL convergence factors for Blahut-Arimoto dynamics.
Determination of the stiffness of the nuclear symmetry energy from isospin diffusion
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abstract
With an isospin- and momentum-dependent transport model, we find that the degree of isospin diffusion in heavy ion collisions at intermediate energies is affected by both the stiffness of the nuclear symmetry energy and the momentum dependence of the nucleon potential. Using a momentum dependence derived from the Gogny effective interaction, recent experimental data from NSCL/MSU on isospin diffusion are shown to be consistent with a nuclear symmetry energy given by $E_{\text{sym}}(\rho)\approx 31.6(\rho /\rho_{0})^{1.05} $ at subnormal densities. This leads to a significantly constrained value of about -550 MeV for the isospin-dependent part of the isobaric incompressibility of isospin asymmetric nuclear matter.
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Proton emitting source size is amplified by 24% in neutron-rich versus neutron-deficient tin collisions, revealing a beyond-mean-field short-range n-p correlation effect.
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Relaxation Kernel, Spectral Dissipation, and Global Convergence of Blahut--Arimoto Dynamics
Establishes chi^2-dissipation identities, spectral decomposition of Lyapunov functions, and explicit KL convergence factors for Blahut-Arimoto dynamics.
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Large amplification of the isospin-dependence of proton emitting source size in radioactive heavy-ion collisions: a signal of n-p correlation
Proton emitting source size is amplified by 24% in neutron-rich versus neutron-deficient tin collisions, revealing a beyond-mean-field short-range n-p correlation effect.