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Compactification of gauge theories and the gauge invariance of massive modes

R. Amorim·J. Barcelos-Neto
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Abstract

We study the gauge invariance of the massive modes in the compactification of gauge theories from D=5 to D=4. We deal with Abelian gauge theories of rank one and two, and with non-Abelian ones of rank one. We show that Stückelberg fields naturally appear in the compactification mechanism, contrarily to what usually occurs in literature where they are introduced by hand, as a trick, to render gauge invariance for massive theories. We also show that in the non-Abelian case they appear in a very different way when compared with their usual implementation in the non-Abelian Proca model.

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R. Amorim, J. Barcelos-Neto. 2001-09-13. Compactification of gauge theories and the gauge invariance of massive modes. https://doi.org/10.1590/s0103-97332002000100034

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