Approximation of the Schwinger-Dyson and the Bethe-Salpeter equations and chiral symmetry of QCD

被引：1

作者：

Naito, K ^{[1
]}

Oka, M ^{[1
]}

机构：

[1] Tokyo Inst Technol, Dept Phys, Meguro Ku, Tokyo 1528551, Japan

来源：

PHYSICAL REVIEW C | 1999年 / 59卷 / 01期

关键词：

D O I：

10.1103/PhysRevC.59.542

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 Bethe-Salpeter equation for the pion in chiral symmetric models is studied with a special care to consistency with low-energy relations. We propose a reduction of the rainbow Schwinger-Dyson and the ladder Bethe-Salpeter equations with a dressed gluon propagator. We prove that the reduction preserves the Ward-Takahashi identity for the axial-vector current and the PCAC relation. [S0556-2813(99)05801-X].

引用

页码：542 / 545

页数：4

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