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A Note on the Gauge Group of the Electroweak Interactions

V. Rizov·I. Vitev
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Abstract

We propose a three-fold covering of the group ${U}(2)$ as a gauge group for the electroweak interactions for the purpose of describing fields with integer and fractional electric charges with respect to the residual electromagnetic gauge group after a spontaneous breaking of the gauge symmetry. In a more general scheme we construct a three-fold covering of ${U} (n)$ and consider for the case $n=2$ several representations which are used in the construction of a model of the electroweak interactions in a subsequent paper.

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V. Rizov, I. Vitev. 2000-09-14. A Note on the Gauge Group of the Electroweak Interactions. https://arxiv.org/abs/hep-ph/0009169

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