Grand gauge–Higgs unification of five dimensional SU(6) gauge theory on an orbifold \(S^1/Z_2\) with localized gauge kinetic terms is discussed. The Standard model (SM) fermions on one of the boundaries and some massive bulk fermions coupling to the SM fermions on the boundary are introduced, so that they respect an SU(5) symmetry structure. The SM fermion masses including top quark are reproduced by mild tuning the bulk masses and parameters of the localized gauge kinetic terms. Gauge coupling universality is not guaranteed by the presence of the localized gauge kinetic terms and it severely constrains the Higgs vacuum expectation value. Higgs potential analysis shows that the electroweak symmetry breaking occurs by introducing additional bulk fermions in simplified representations. The localized gauge kinetic terms enhance the magnitude of the compactification scale, which helps Higgs boson mass large. Indeed the observed Higgs boson mass 125 GeV is obtained.

讨论了具有局部应变规动力学项的单向\（S ^ 1 / Z_2 \）上五维SU（6）应变规理论的大尺度-希格斯统一。介绍了边界之一上的标准模型（SM）费米子以及耦合到边界上的SM费米子的一些块状体费米子，以便它们尊重SU（5）对称结构。SM费米子质量（包括顶夸克）是通过对局部质量规动力学项的总质量和参数进行微调来复制的。局部量规动力学项的存在不能保证量规耦合的通用性，它严重限制了希格斯真空期望值。希格斯电势分析表明，电弱对称性破坏是通过以简化表示形式引入额外的体费米子而发生的。局部规范动力学项会增加压实尺度的大小，这有助于使希格斯玻色子变大。实际上，获得了观察到的希格斯玻色子质量125 GeV。