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Some Properties of $\pi$ Meson in Nuclear Matter with Finite Density
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作者 YANGLan-Fei LUXiao-Fu 《Communications in Theoretical Physics》 SCIE CAS CSCD 2002年第5期589-592,共4页
In the GCM we study some properties of meson as the Goldstone bosons in a nuclear matter with finite density. Using the effective action in a nuclear matter, we calculate the decay constant and mass as functions of ... In the GCM we study some properties of meson as the Goldstone bosons in a nuclear matter with finite density. Using the effective action in a nuclear matter, we calculate the decay constant and mass as functions of the chemical potential. The relation between the chemical potential and the density of a nuclear matter is firstly given here. We find that and monotonously decrease as nuclear matter density increases. The result is consistent with the usual assumption that the chiral symmetry is gradually restored as the density of a nuclear matter increases. 展开更多
关键词 pi meson effective action chemical potential nuclear matter density
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