A non-linear Rζ gauge condition for the electroweak SU(2) × U(1) model
A non-linear Rζ gauge condition for the electroweak SU(2) × U(1) model
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DOI：
10.1016/0550-3213(81)90529-0
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发表时间：
1981-12
期刊：
影响因子：
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通讯作者：
M. B. Gavela;G. Girardi;C. Malleville;P. Sorba
中科院分区：
文献类型：
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作者：
M. B. Gavela;G. Girardi;C. Malleville;P. Sorba
本文在SU（2）×U（1）规范模型的框架下，提出并发展了一个非线性R_∞规范条件。我们给出了相应的费曼规则，这是简单的比在R规范，因为涉及非物理希格斯玻色子和规范玻色子的耦合消失或简化。Faddeev-Popov扇区更优雅，鬼耦合到中性规范玻色子，就像标量电动力学一样。最后，作为一个实际例子，考虑了Higgs→γγ跃迁，并与线性规范中的通常计算作了比较。
A non-linearRζgauge condition is presented and explicitly developed in the framework of the SU(2)×U(1) gauge model. We give the corresponding Feynman rules, which are simpler than inRζgauges, because couplings involving unphysical Higgs and gauge bosons disappear or simplify. The Faddeev-Popov sector is more elegant, the ghosts coupling to neutral gauge bosons like in scalar electrodynamics. Finally, as a practical example, the transition Higgs→γγis considered and compared with the usual calculation in linear gauges.