,Quark-Number Susceptibility at Finite Chemical Potential and Zero Temperature

• 作 者: HE Deng-Ke JIANG Yu FENG Hong-Tao SUN Wei-Min ZONG Hong-Shi
• 机 构: Department of Physics,Nanjing University,Nanjing,210093“,”Joint Center for Particle,Nudear Physics a
• 出 处: 中国物理快报(英文版)
• 发表日期: 2008年2期

We give a direct method for calculating the quark-number susceptibility at finite chemical potential and zero temperature.In this approach the quark-number susceptibility is totally determined by G[μ](p)(the dressed quark propagator at finite chemical potential μ).By applying the general result in our previous study[Phys.Rev.C 71(2005)015205,034901,73 (2006) 016004] G[μ](p)is calculated from the model quark propagator proposed by Pagels and Stokar[Phys.Rev.D 20(1979)2947].The full analytic expression of the quark-number susceptibility at finite μ and zero T is obtained.