论文标题
在部分综合框架中对矢量般的夸克进行建模
Modelling vector-like quarks in partial compositeness framework
论文作者
论文摘要
复合希格斯模型以及部分综合性，预测了TEV量表和更高版本的新标量和类似矢量的夸克（合作伙伴）的存在。通常，这些其他标量的存在为合作伙伴打开了新的衰减拓扑。在本文中，我们展示了如何系统地构建一般的低能拉格朗日语来捕获此功能。我们强调了在这类模型中产生的顶级谱系中的特定模式。然后，我们在su（5）/so（5）coset的背景下提出了一个具体的实现。我们表明，与通常的标准模型通道相比，该模型中的顶级有零件与其他标量和第三代夸克具有显着的分支比率。 LHC最有希望的签名是最终的州，其中包含双孔共振以及顶级夸克。
Composite Higgs models, together with partial compositeness, predict the existence of new scalars and vector-like quarks (partners) at and above the TeV scale. Generically, the presence of these additional scalars opens up new decay topologies for the partners. In this paper we show how to systematically construct the general low energy Lagrangian to capture this feature. We emphasize the specific pattern in the top-partner spectrum arising in this class of models. We then present a concrete realization in the context of the SU(5)/SO(5) coset. We show that the top-partners in this model can have significant branching ratios to the additional scalars and a third generation quark, compared to the usual Standard Model channels. Amongst the most promising signatures at the LHC are final states containing a diphoton resonance along with a top quark.
