论文标题
近乎符合的复合希格斯模型
A Near-Conformal Composite Higgs Model
论文作者
论文摘要
我们根据基本表示中的$ n_f = 8 $ dirac fermions的限制$ su（3）$ gauge理论分析了复合希格斯模型。该规程的理论已在晶格上进行了研究，并被Dilaton有效场理论（EFT）很好地描述。在这里，我们通过分配标准模型量子数来修改EFT，以使四个复合伪-Nambu-goldstone玻色子（PNGB）字段形成标准模型Higgs Doublet，通过将其耦合到顶级夸克，并添加到潜在的术语中，从而添加了triggers electroweak symetoweak symetmetry symmetry breaking breaking breaking breaking。该模型包含一个pngb higgs玻色子，一组较重的pngbs和相同质量范围内的近似dilaton。我们研究了模型的现象学，并讨论了确保与新物理学的当前直接和间接界限保持一致性所需的调整量，从而突出了Dilaton场的作用。
We analyze a composite Higgs model based on the confining $SU(3)$ gauge theory with $N_f = 8$ Dirac fermions in the fundamental representation. This gauge theory has been studied on the lattice and shown to be well described by a dilaton effective field theory (EFT). Here we modify the EFT by assigning standard-model quantum numbers such that four of the composite pseudo-Nambu-Goldstone boson (pNGB) fields form the standard-model Higgs doublet, by coupling it to the top quark, and by adding to the potential a term that triggers electroweak symmetry breaking. The model contains a pNGB Higgs boson, a set of heavier pNGBs, and an approximate dilaton in the same mass range. We study the phenomenology of the model, and discuss the amount of tuning required to insure consistency with current direct and indirect bounds on new physics, highlighting the role of the dilaton field.
