Radiatively Induced Spontaneous Symmetry Breaking by Wilson Line in a Warped Extra Dimension

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dc.creatorHatanaka, Hisaki
dc.date2007-12-10
dc.date.accessioned2026-07-07T08:48:11Z
dc.date.available2026-07-07T08:48:11Z
dc.descriptionWe investigate the dynamical gauge-Higgs unification in the Randall-Sundrum (RS) space-time. We study the dynamical gauge-Higgs unification in the SU(2) gauge theory with a bulk fermion in the RS space-time. We evaluate the contribution from fermion loop to the one-loop effective potential with respect to the Wilson-line phase, and study the dynamical gauge symmetry breaking. We also apply this mechanism of the gauge symmetry breaking to the electroweak gauge-Higgs unification in the RS space-time. Especially we numerically studied a SU(3)_w gauge model as a toy model of electroweak gauge-Higgs unification in the RS space-time. We introduce an adjoint fermion into the model to break the gauge symmetry and to obtain the U(1)_em electromagnetic symmetry. We found that in this model the ratio of Z-boson mass to W-boson varies with respect to the Wilson-line phase even at the tree level. We also propose a dynamical mechanism of tuning the ratio m_Z/m_W to the experimental value 91.2GeV/80.4GeV=1.13 by introducing bulk scalars or bulk fermions with twisted boundary conditions. In these models the Higgs can vary in mass between zero and 290GeV.
dc.description32 pages, 11 figures
dc.identifierhttps://arxiv.org/abs/0712.1334
dc.identifierhttp://arxiv.org/abs/0712.1334
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/143856
dc.subjectHigh Energy Physics - Theory
dc.subjectHigh Energy Physics - Phenomenology
dc.titleRadiatively Induced Spontaneous Symmetry Breaking by Wilson Line in a Warped Extra Dimension
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