SPONTANEOUS BREAKING OF CHIRAL SYMMETRY IN QUANTUM CHROMODYNAMICS

被引：19

作者：

NACHTMANN, O

WETZEL, W

机构：

[1] Institut für Theoretische Physik der Universität Heidelberg, Heidelberg

来源：

PHYSICS LETTERS B | 1979年 / 81卷 / 02期

关键词：

D O I：

10.1016/0370-2693(79)90526-4

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We prove that the chiral SU(2) × SU(2) symmetry of quantum chromodynamics with two massless quark flavours is spontaneously broken. The asymptotic freedom property of the theory is essential for the proof. The Goldstone theorem then implies that the theory contains a massless spin zero particle. We show that this Goldstone boson has the quantum numbers of the pion. © 1979.

引用

页码：211 / 214

页数：4

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