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arXiv 1310.3540nucl-th
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极限温度的同位素和同量异位素分布对对称能的敏感依赖性

Sensitive dependence of isotope and isobar distribution of limiting temperatures on symmetry energy

Li Ou, Min Liu, Zhuxia Li

摘要:

利用热力学方法和Skyrme能量密度泛函研究了有限核的质量、同位素和极限温度的等压线分布。明确地观察到极限温度的同位素(等压线)分布的宽度与对称能的密度依赖性的刚度之间的关系。斜率参数$L_{\rm{sym}}$较小的核对称能导致极限温度的同位素(等压线)分布较宽。极限温度的同位素(等压线)分布宽度可以作为探索有限温度下核对称能密度依赖性信息的有用观测量。

英文摘要:

The mass, isotope, and isobar distributions of limiting temperatures for finite nuclei are investigated by using a thermodynamics approach together with the Skyrme energy density functional. The relationship between the width of the isotope (isobar) distribution of limiting temperatures and the stiffness of the density dependence of the symmetry energy clearly is observed. The nuclear symmetry energy with smaller slope parameter $L_{\rm{sym}}$ causes a wider the isotope (isobar) distribution of limiting temperatures. The widths of the isotope (isobar) distributions of limiting temperatures could be useful observables for exploring the information of the density dependence of the nuclear symmetry energy at finite temperatures.

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