Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2001-12-08
Phys.Rev. D65 (2002) 076012
Physics
High Energy Physics
High Energy Physics - Phenomenology
Revtex, 34 pages, 7 figures, section V revised, accepted by PRD
Scientific paper
10.1103/PhysRevD.65.076012
The Green-function approach has been extended to the moderate baryon density region in the framework of an extended Nambu--Jona-Lasinio model, and the thermodynamic potential with both chiral and diquark condensates has been evaluated by using the massive quark propagator. The phase structure along the chemical potential direction has been investigated and the strong competition between the chiral and diquark condensate has been analyzed by investigating the influence of the diquark condensate on the sharp Fermi surface. The influence of the diquark condensate on the quark properties has been investigated, even though the quarks in the color breaking phase are very different from that in the chiral breaking phase, the difference between quarks in different colors is very small.
Chao Weiqin
Huang Mei
Zhaung Pengfei
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