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arXiv 1012.4808hep-ph
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最小共形Technicolor

Flavor in Minimal Conformal Technicolor

Jared A. Evans, Jamison Galloway, Markus A. Luty, Ruggero Altair Tacchi

摘要:

我们构建了一个完整的,现实的,自然的紫外线完成最小的共形人工色,解释了夸克和轻子质量和混合角的起源。正如在“玻色技术”中,我们将共形技术嵌入超对称理论中,超对称在高尺度上破缺。重标量二重态的交换产生了技术费米子与夸克和轻子之间的高维相互作用,从而产生了TeV量级的夸克和轻子质量。要获得足够大的顶夸克质量,需要在顶夸克和人工色夸克两个区域都有超对称破缺尺度下的强动力学。如果超对称破缺之上的理论也具有强共形动力学,这是很自然的。我们提出了两个模型,其中强顶部动态以不同的方式实现。在这两种模型中,可以很容易地满足来自风味变化效应的约束。超对称破缺标度以下的有效理论是最小共形人工色加上一个额外的轻人工色高吉诺。我们认为,这种光高吉诺是一个普遍的后果共形人工色嵌入到一个超对称理论。如果高吉诺的质量低于TeV,它将产生一个额外的伪南武-戈德斯通玻色子,可以在LHC上观察到。

英文摘要:

We construct a complete, realistic, and natural UV completion of minimal conformal technicolor that explains the origin of quark and lepton masses and mixing angles. As in "bosonic technicolor", we embed conformal technicolor in a supersymmetric theory, with supersymmetry broken at a high scale. The exchange of heavy scalar doublets generates higher-dimension interactions between technifermions and quarks and leptons that give rise to quark and lepton masses at the TeV scale. Obtaining a sufficiently large top quark mass requires strong dynamics at the supersymmetry breaking scale in both the top and technicolor sectors. This is natural if the theory above the supersymmetry breaking also has strong conformal dynamics. We present two models in which the strong top dynamics is realized in different ways. In both models, constraints from flavor-changing effects can be easily satisfied. The effective theory below the supersymmetry breaking scale is minimal conformal technicolor with an additional light technicolor gaugino. We argue that this light gaugino is a general consequence of conformal technicolor embedded into a supersymmetric theory. If the gaugino has mass below the TeV scale it will give rise to an additional pseudo Nambu-Goldstone boson that is observable at the LHC.

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