Non-local symmetry breaking in Kaluza-Klein theories

Details Non-local symmetry breaking in Kaluza-Klein theories Non-local symmetry breaking in Kaluza-Klein theories

2001-07-18

arxiv.org/abs/hep-ph/0107201v3

Phys.Rev.Lett.87:251601,2001

Physics

High Energy Physics

High Energy Physics - Phenomenology

v2: Wilson loop contributions and generalization to SU(N) included; references added. v3: version to appear in Phys. Rev. Lett

Scientific paper

10.1103/PhysRevLett.87.251601

Scherk-Schwarz gauge symmetry breaking of a D-dimensional field theory model compactified on a circle is analyzed. It is explicitly shown that forbidden couplings in the unbroken theory appear in the one-loop effective action only in a non-local way, implying that they are finite at all orders in perturbation theory. This result can be understood as a consequence of the local gauge symmetry, but it holds true also in the global limit.

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