2007/03/09 by Ilia Gogoladze, Chin-Aik Lee, Yukihiro Mimura +1 · 16 citations
Physics and Astronomy · #Antisymmetric tensor #Black Holes and Theoretical Physics #Brane #Compactification (mathematics) #Electroweak interaction #Gauge symmetry #Gauge theory #Higgs boson #Orbifold #Particle physics #Particle physics theoretical and experimental studies #Physics #Quantum Chromodynamics and Particle Interactions #Theoretical physics #Yukawa potential #hep-ph
paper · pdf · doi:10.1016/j.physletb.2007.03.042
published in Physics Letters B 649(2-3), 212-217 (Elsevier BV) · 12 pages
arxiv created 2007/03/09 · openalex publication_date 2007/04/02 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We discuss how unification of the gauge, Higgs and (three chiral family) matter superfields can be realized from the compactification of a six dimensional supersymmetric SU(8) gauge theory over the orbifold R4 x T2/Z3. The bulk gauge interaction includes Yukawa interactions to generate masses for quarks and leptons after the electroweak symmetry is broken. The Yukawa matrices in this case turn out to be antisymmetric, and thus not phenomenologically viable. To overcome this we introduce brane fields which are vector-like under the standard model gauge symmetry, and so do not alter the number of chiral families. In such a setup, the observed fermion masses and mixings can be realized by taking into account suppression effects from the effective Wilson line couplings and large volume of the extra dimensions.