Vacuum structure and dynamical symmetry breaking in gauge-Higgs unification models

نویسندگان

  • Naoyuki Haba
  • Toshifumi Yamashita
چکیده

We study the vacuum structure and dynamical symmetry breaking in the gaugeHiggs unification of the 5D theory compactified on an orbifold, S/Z2. This theory identifies Wilson line degrees of freedoms as “Higgs doublets”. We consider SU(3)c × SU(3)W and SU(6) models with the compactification scale of order a few TeV. The gauge symmetries are reduced to SU(3)c × SU(2)L × U(1)Y and SU(3)c × SU(2)L × U(1)Y × U(1), respectively, through the orbifolding boundary conditions. We study the vacuum structure by use of the one loop effective potential of “Higgs doublets”. The symmetry breaking pattern depends on numbers of bulk fields and their representations. Especially, the suitable electro-weak breaking is realized through the radiative corrections when there are suitable numbers of bulk fields possessing the suitable representations.

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تاریخ انتشار 2004