CAUSAL CONSTRUCTION OF YANG-MILLS THEORIES .4. UNITARITY

被引：34
|
作者：
DUTSCH, M
HURTH, T
SCHARF, G
机构：
[1] Institut für Theoretische Physik der Universität Zürich, Zürich, CH-8057
来源：
NUOVO CIMENTO DELLA SOCIETA ITALIANA DI FISICA A-NUCLEI PARTICLES AND FIELDS | 1995年 / 108卷 / 06期
关键词：
11.10 - Field theory; 12.38.Aw - General properties of QCD (dynamics; confinement; etc.);
D O I：
10.1007/BF02813378
中图分类号：
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号：
摘要：
We prove perturbative unitarity of the S-matrix on the physical Hilbert space for Yang-Mills theories with matter fields in the causal approach. Here unitarity is a direct consequence of gauge invariance. To establish the latter, we prove the C-number identities for gauge invariance (Cg-identities).
引用
收藏
页码：737 / 773
页数：37
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