J4 ›› 2012, Vol. 50 ›› Issue (4): 775-778.

• 物理 • 上一篇    下一篇

 Nambu\|Jona\|Lasinio模型下奇异物质和奇异星

吴哈斯1, 杨蕴哲2, 包特木尔巴根3   

  1. 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
  • 收稿日期:2011-05-31 出版日期:2012-07-01 发布日期:2012-09-07
  • 通讯作者: 包特木尔巴根 E-mail:tmurbagen@yahoo.com.cn

 Strange Quark Matter and Strange Stars in the Nambu\|Jona\|Lasinio Model

WU Ha-si 1, YANG Yun-zhe 2, BAO Tmurbagan 3   

  1. 1. |Department of Physics and Mathematics, Huhhot University for Nationalities, Hohhot |010051, China;
    2. College of Physics, Nanyang Normal University, Nanyang |473061, Henan Province, China;
    3. College of Physics and Electronic Engineering, Inner Mongolia |University for the |Nationalities, Tongliao 028043,
    Inner Mongolia Autonomous Region, China
  • Received:2011-05-31 Online:2012-07-01 Published:2012-09-07
  • Contact: BAO Tmurbagan E-mail:tmurbagen@yahoo.com.cn

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.

关键词: 奇异星, 状态方程, 质量, 半径关系

Abstract:

 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 strange stars described by NJL model are smaller than that of EMBM within the scope of observational data.

Key words: strange stars, equations of state, mass\, radius relation

中图分类号: 

  • O413.3