Probing the nuclear symmetry energy with heavy-ion collisions
Probing the nuclear symmetry energy with heavy-ion collisions
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DOI：
10.1051/epjconf/20158800020
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发表时间：
2015-04
期刊：
影响因子：
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通讯作者：
E. Filippo
中科院分区：
文献类型：
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作者：
E. Filippo
重离子碰撞（HIC）被广泛用于提取核态方程中对称能项随重子密度的参数化。HIC实际上是地球实验室探索饱和密度（ρ 0 = 0.16fm−3）周围的对称能的独特工具，从亚饱和密度（费米能）到压缩核物质（ρ > 2−3ρ 0），可以在相对论能量下达到，作为不同条件的函数温度，质量不对称和同位旋。从稳定核和奇异核的重离子碰撞、核结构研究和天体物理观测等方面对非对称核物质的EOS进行连贯描述是目前研究的主要方向之一。在这项工作中，概述了目前的研究现状，并简要回顾了旨在减少目前实验和理论不确定性的新观点。
Heavy ion collisions (HIC) have been widely used to extract the parametrization of symmetry energy term of nuclear equation of state as a function of barionic density. HIC in fact are a unique tool in terrestrial laboratories to explore the symmetry energy around the saturation density (ρ 0 = 0.16fm −3 ) from sub-saturation densities (Fermi energies) towards compressed nuclear matter (ρ > 2 − 3ρ 0 ) that can be reached at relativistic energies, as a function of different conditions of temperature, mass asymmetry and isospin. One of the main study at present is to reach a coherent description of EOS of asymmetric nuclear matter from heavy ion collisions of stable and exotic nuclei, nuclear structure studies and astrophysical observations. In this work an overview of the current status of the research is shortly reviewed together with new perspectives aimed to reduce the present experimental and theoretical uncertainties.