Nambu-Jona-Lasinio模型下奇异物质和奇异星  

Strange Quark Matter and Strange Stars in the Nambu-Jona-Lasinio Model

作　　者：吴哈斯 杨蕴哲[2] 包特木尔巴根[3] 

机构地区：[1]呼和浩特民族学院数理系,呼和浩特010051 [2]南阳师范学院物理学院,河南南阳473061 [3]内蒙古民族大学物理与电子信息学院,内蒙古通辽028043

出　　处：《吉林大学学报（理学版）》2012年第4期775-778,共4页Journal of Jilin University:Science Edition

基　　金：国家自然科学基金(批准号:10275029);河南省自然科学基金(批准号:112300410187);河南省教育厅自然科学研究计划项目(批准号:2008A140009);内蒙古民族大学博士科研启动基金(批准号:BS275)

摘　　要：利用Nambu-Jona-Lasinio(NJL)模型描述奇异夸克物质,并研究奇异夸克物质及奇异星的性质.通过求解能隙方程,给出了组分夸克的动力学质量和数密度随重子数密度的变化关系;计算得到奇异物质的状态方程及奇异星的质量-半径关系.结果表明,用NJL模型描述的奇异星质量和半径均较小,并在观测值的下限附近.The properties of strange quark matter and strange stars were studied by means of Nambu-Jona- Lasinio （NJL） model to describe the strange quark matter. Dynamical mass and number density of consisent quarks versus baryon number density were given by means of solving the gap-equations. The equations of states for strange quark matter and corresponding mass-radius relation of strange star were also investigated. The numerical results show that the mass and radius of the that of EMBM within the scope of observational data. strange stars described by NJL model are smaller than

关 键 词：奇异星 状态方程 质量-半径关系 

分 类 号：O413.3[理学—理论物理]