arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1006.4446hep-ph
收藏

基于$E_6$规范对称性的六维规范-Higgs统一模型

A six-dimensional gauge-Higgs unification model based on $E_6$ gauge symmetry

Cheng-Wei Chiang, Takaaki Nomura

摘要:

在$S^2/Z_2$轨道紧化的基础上,利用$E_6$的扩展规范群构造了一个六维规范-Higgs统一模型.通过在轨道上施加适当的宇称条件,利用一个双折射背景场,得到了标准模型粒子的含量和规范对称性。特别地,在不引入额外物质或假设$S^2$上的SU(2)等距变换与规范对称性之间存在额外的对称关系的情况下,得到了一个适合于破缺电弱规范对称性的实际Higgs势.希格斯玻色子是与规范场的额外维分量相关联的KK模。它的奇KK宇称使它成为一种稳定的粒子,因此是模型中潜在的暗物质候选者。我们还计算了所有场在树级的KK质量。

英文摘要:

We construct a six-dimensional gauge-Higgs unification model with the enlarged gauge group of $E_6$ on $S^2/Z_2$ orbifold compactification. The standard model particle contents and gauge symmetry are obtained by utilizing a monopole background field and imposing appropriate parity conditions on the orbifold. In particular, a realistic Higgs potential suitable for breaking the electroweak gauge symmetry is obtained without introducing extra matter or assuming an additional symmetry relation between the SU(2) isometry transformation on the $S^2$ and the gauge symmetry. The Higgs boson is a KK mode associated with the extra-dimensional components of gauge field. Its odd KK-parity makes it a stable particle, and thus a potential dark matter candidate in the model. We also compute the KK masses of all fields at tree level.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑