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Michel theory of symmetry breaking and gauge theories

G. Gaeta·P. Morando
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Abstract

We extend Michel's theorem on the geometry of symmetry breaking [L. Michel, {\it Comptes Rendus Acad. Sci. Paris} {\bf 272-A} (1971), 433-436] to the case of pure gauge theories, i.e. of gauge-invariant functionals defined on the space ${\cal C}$ of connections of a principal fiber bundle. Our proof follows closely the original one by Michel, using several known results on the geometry of ${\cal C}$. The result (and proof) is also extended to the case of gauge theories with matter fields.

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G. Gaeta, P. Morando. 2002-06-29. Michel theory of symmetry breaking and gauge theories. https://doi.org/10.1006/aphy.1997.5700

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