核物质和夸克物质的对称能（英文）

发布时间：2018-06-14 19:33

本文选题：对称能 + 非对称核物质状态方程　；参考：《原子核物理评论》2017年01期

【摘要】：对称能表征了同位旋非对称强相互作用物质状态方程的同位旋相关部分,它对于理解核物理和天体物理中的许多问题有重要意义。简要总结了关于核物质和夸克物质对称能研究的最新进展。对于核物质对称能,通过对核结构,核反应以及中子星的研究,目前对其亚饱和密度的行为已有比较清楚的认识,同时,对饱和密度附近对称能的约束也取得了很好的研究进展。但如何确定核物质对称能的高密行为仍然是一个挑战。另一方面,在极端高重子数密度条件下,强相互作用物质将以退禁闭的夸克物质状态存在。同位旋非对称夸克物质可能存在于致密星内部,也可能产生于极端相对论重离子碰撞中。对最近关于夸克物质对称能对夸克星性质的影响以及重夸克星的存在对夸克物质对称能的约束的研究工作进行了介绍,结果表明同位旋非对称夸克物质中上夸克和下夸克可能感受到很不一样的相互作用,这对于研究极端相对论重离子碰撞中部分子动力学的同位旋效应有重要启发。
[Abstract]:The symmetric energy characterizes the isospin correlation part of the equation of state of the isospin asymmetric strongly interacting matter, which is of great significance in understanding many problems in nuclear physics and astrophysics. The recent progress in the study of symmetric energy of nuclear matter and quark matter is briefly summarized. For the symmetric energy of nuclear matter, through the study of nuclear structure, nuclear reaction and neutron star, the behavior of its subsaturation density has been well understood, and at the same time, Good research progress has also been made on the constraint of symmetric energy near saturation density. However, how to determine the high density behavior of symmetric energy of nuclear matter is still a challenge. On the other hand, under the condition of extreme high baryon density, the strongly interacting matter will exist in the state of decomposed quark matter. The isospin asymmetric quark matter may exist in the dense star or in the extreme relativistic heavy ion collision. In this paper, the influence of the symmetric energy of quark matter on the properties of quark stars and the constraints of the existence of heavy quark stars on the symmetric energy of quarks are introduced. The results show that the interaction between upper quark and lower quark in isospin asymmetric quark matter may be very different, which has important implications for studying the isospin effect of parton dynamics in extreme relativistic heavy ion collisions.
【作者单位】：上海交通大学物理与天文系;兰州重离子加速器国家实验室原子核理论中心;
【基金】：National Basic Research Program of China(973 Program)(2013CB834405,2015CB856904) National Natural Science Foundation of China(11625521,11275125,11135011) Program for Professor of Special Appointment(Eastern Scholar)at Shanghai Institutions of Higher Learning Key Laboratory for Particle Physics,Astrophysics and Cosmology,Ministry of Education,China Program of Science and Technology Commission of Shanghai Municipality(11DZ2260700)~~
【分类号】：O572.33

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