The formulation of gauge-Higgs unification with dynamical boundary conditions

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書誌事項

公開日
2014-06
権利情報
  • https://www.elsevier.com/tdm/userlicense/1.0/
  • https://www.elsevier.com/legal/tdmrep-license
  • http://creativecommons.org/licenses/by/3.0/
DOI
  • 10.1016/j.nuclphysb.2014.03.017
  • 10.48550/arxiv.1401.0466
公開者
Elsevier BV

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説明

The boundary conditions on multiply connected extra dimensions play major rolls in gauge-Higgs unification theory. Different boundary conditions, having been given in ad hoc manner so far, lead to different theories. To solve this arbitrariness problem of boundary conditions, we construct a formulation of gauge-Higgs unification with dynamics of boundary conditions on M^4 times S^1/Z_2. As a result, it is found that only highly restricted sets of boundary conditions, which lead to nontrivial symmetry breaking, practically contribute to the partition function. In particular, we show that for $SU(5)$ gauge group, sets of boundary conditions which lead to SU(5) to SU(3) times SU(2) times U(1) symmetry breaking are naturally included in the restricted sets.

19 pages. The discussion in section 3 was changed, Some typos and expressions have been corrected

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