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arXiv 0903.1875hep-ph
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规范-希格斯-物质统一轨道大统一理论中的味对称性

Flavor Symmetry in Gauge-Higgs-Matter Unified Orbifold GUTs

Yukihiro Mimura

摘要:

在高维超对称规范理论中,我们构造了一个所有标准模型粒子统一在一个规范多重态中的轨道模型。我们发现,味对称性必须保持在四维由于离散电荷守恒的轨道条件下,如果有色希格斯分量的规范多重态被投影出来。当味对称性起源于E_8体规范对称性时,可以构造成功的统一模型。在这个模型中,夸克和轻子的所有Dirac Yukawa耦合都是由高维规范相互作用产生的。

英文摘要:

We construct an orbifold model in which all the standard model particles are unified in a gauge multiplet in higher dimensional supersymmetric gauge theory. We find that a flavor symmetry has to remain in four dimensions due to the discrete charge conservation for orbifold conditions if the colored Higgs components in the gauge multiplet are projected out. When the flavor symmetry originates from the E_8 bulk gauge symmetry, the successful unification model can be constructed. In the model, all the Dirac Yukawa couplings for quarks and leptons are generated by the higher dimensional gauge interaction.

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