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Revisiting the isospin relaxation time in intermediate-energy heavy-ion collisions
Nuclear Theory · Submitted 5 Jul 2018
abstract compiled · 2026-09-23 · no language-model review
The authors' main claim The respective roles and time scales of the isospin diffusion and drift as the major mechanisms of isospin transport in intermediate-energy heavy-ion collisions are discussed.
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Isospin relaxation times characterizing isospin transport processes between the projectile and the target with different $N/Z$ ratios and that between the neck and the spectator with different isospin asymmetries and densities in intermediate-energy heavy-ion collisions are studied within an isospin-dependent Boltzmann-Uehling-Uhlenbeck transport model using the lattice Hamiltonian approach. The respective roles and time scales of the isospin diffusion and drift as the major mechanisms of isospin transport in intermediate-energy heavy-ion collisions are discussed. Effects of nuclear symmetry energy and neutron-proton effective mass splitting on the isospin relaxation times are examined.
background contribution method result interpretation main claim
| # | sentence | role | the authors' own work | states the main conclusion | strength |
|---|---|---|---|---|---|
| s0 | Isospin relaxation times characterizing isospin transport processes between the projectile and the target with different $N/Z$ ratios and that between the neck and the spectator with different isospin asymmetries and densities in intermediate-energy heavy-ion collisions are studied within an isospin-dependent Boltzmann-Uehling-Uhlenbeck transport model using the lattice Hamiltonian approach. | contribution 0.90 | 0.88 | 0.07 | asserted 0.94 |
| s1 | The respective roles and time scales of the isospin diffusion and drift as the major mechanisms of isospin transport in intermediate-energy heavy-ion collisions are discussed. | contribution 0.71 | 0.66 | 0.09 | unclear 0.53 |
| s2 | Effects of nuclear symmetry energy and neutron-proton effective mass splitting on the isospin relaxation times are examined. | contribution 0.94 | 0.86 | 0.08 | asserted 0.79 |
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Original abstract
Isospin relaxation times characterizing isospin transport processes between the projectile and the target with different $N/Z$ ratios and that between the neck and the spectator with different isospin asymmetries and densities in intermediate-energy heavy-ion collisions are studied within an isospin-dependent Boltzmann-Uehling-Uhlenbeck transport model using the lattice Hamiltonian approach. The respective roles and time scales of the isospin diffusion and drift as the major mechanisms of isospin transport in intermediate-energy heavy-ion collisions are discussed. Effects of nuclear symmetry energy and neutron-proton effective mass splitting on the isospin relaxation times are examined.
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Despite of the great efforts made over the last few decades, $E_sym(ρ)$ at both subsaturation and suprasaturation densities are still uncertain, see, e.g., Refs. [ref] for reviews.
The Nuclear Symmetry Energy at Sub-saturation Densities · Introduction · 0.93
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