Higgs mechanism and symmetry breaking without redundant variables
Higgs mechanism and symmetry breaking without redundant variables
复制标题
希格斯机制和对称性破缺，无需冗余变量
DOI：
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发表时间：
1995
期刊：
影响因子：
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通讯作者：
M. Thies
中科院分区：
文献类型：
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作者：
D. Stoll;M. Thies
在量子化规范理论的规范外尔规范公式中重新考虑希格斯机制，使用一种消除冗余自由度的方法。因此，它的对称性方面出现在不同的光。希格斯机制的所有已建立的物理结果都在没有引起规范对称破缺的情况下得到了恢复。在非阿贝尔希格斯模型中，无质量矢量玻色子的出现被解释为某些全局对称性自发破裂的信号。QED和Georgi Schwarhow模型的相关“位移对称性”之间的特征差异被展示出来。指出了标准模型的电弱扇区的对称性方面的影响和戈德斯通玻色子的物理光子的解释。
The Higgs mechanism is reconsidered in the canonical Weyl gauge formulation of quantized gauge theories, using an approach in which redundant degrees of freedom are eliminated. As a consequence, its symmetry aspects appear in a different light. All the established physics consequences of the Higgs mechanism are recovered without invoking gauge symmetry breaking. The occurence of massless vector bosons in non-abelian Higgs models is interpreted as signal of spontaneous breakdown of certain global symmetries. Characteristic differences between the relevant ``displacement symmetries'' of QED and the Georgi Glashow model are exhibited. Implications for the symmetry aspects of the electroweak sector of the standard model and the interpretation of the physical photon as Goldstone boson are pointed out.