重离子反应中的涨落和同位旋平衡

Acta Physica Hungarica Pub Date : 2005-10-01 DOI:10.1556/APH.24.2005.1-4.14

M. Zielínska-Pfabé, V. Baran, M. Colonna, M. Toro, H. Wolter

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引用次数: 0

摘要

采用具有密度涨落的Boltzmann-Uehling-Uhlenbeck (BUU)方法研究了核状态方程(EOS)中不对称项的密度依赖性。研究了同位旋扩散和平衡过程。光粒子的同位素比值不够灵敏，无法区分易硬型和易软型EOS。然而，同位旋比似乎对核状态方程中不对称项的密度依赖性更敏感，它更倾向于一个更容易僵硬的状态方程。

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Fluctuations and Isospin Equilibration in Heavy Ion Reactions

The Boltzmann–Uehling–Uhlenbeck (BUU) approach with density fluctuations was used to study the density dependence of the asymmetry term in the nuclear equation of state (EOS). The isospin diffusion and equilibration process was investigated. The isotopic ratios of light particles were not sensitive enough to distinguish between asy-stiff and asy-soft EOS. However, the isospin ratio seems to be more sensitive to the density dependence of the asymmetry term in the nuclear equation of state and it favors a more asy-stiff equation of state.

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Acta Physica Hungarica

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