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arXiv 0808.2853hep-th
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大质量玻色子场的BRS不变性讲座

Lectures on BRS invariance for massive boson fields

Jose M. Gracia-Bondia

摘要:

这些笔记对应于在哥伦比亚莱瓦别墅暑期学校(2007年7月)所作的讲座。我们在这个关于规范理论的BRS不变性的短期课程中的主要目的是阐明被标准处理所遮蔽的理论的角落。计划如下。首先回顾了Utiyama的“一般规范理论“。最后,我们找到了一个反例,它的形状是大质量自旋1的斯图克尔伯格规范场。这并不奇怪,因为在自由量子场的背景下,大质量的情况是引入BRS不变性的最自然的情况。从数学上讲,课程的第一部分使用了Utiyama的符号,因此具有标准物理教科书的风味和非固有符号。接下来,我们处理玻色子场的Fock空间和BRS不变性的存在Krein运营商,然后解决出席严格点。

英文摘要:

These notes correspond to lectures given at the Villa de Leyva Summer School in Colombia (July 2007). Our main purpose in this short course on BRS invariance of gauge theories is to illuminate corners of the theory left in the shade by standard treatments. The plan is as follows. First a review of Utiyama's "general gauge theory". Promptly we find a counterexample to it in the shape of the massive spin-1 Stueckelberg gauge field. This is not fancy, as the massive case is the most natural one to introduce BRS invariance in the context of free quantum fields. Mathematically speaking, the first part of the course uses Utiyama's notation, and thus has the flavour and non-intrinsic notation of standard physics textbooks. Next we deal with boson fields on Fock space and BRS invariance in connection with the existence of Krein operators; the attending rigour points are then addressed.

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