Chiral Lagrangians at finite density

被引：27
|
作者：
Oller, JA [1 ]
机构：
[1] Forschungszentrum Julich, Inst Kernphys Th, D-52425 Julich, Germany
来源：
PHYSICAL REVIEW C | 2002年 / 65卷 / 02期
关键词：
D O I：
10.1103/PhysRevC.65.025204
中图分类号：
O57 [原子核物理学、高能物理学];
学科分类号：
070202 ;
摘要：
The effective SU(2) chiral Lagrangian with external sources is given in the presence of nonvanishing nucleon densities by calculating the in-medium contributions of the chiral pion-nucleon Lagrangian. As a by-product, a relativistic quantum field theory for Fermi many-particle systems at zero temperature is directly derived from relativistic quantum field theory with functional methods.
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页数：7
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