论文标题
dilaton有效野外理论
Dilaton Effective Field Theory
论文作者
论文摘要
我们审查并扩展了DILATON有效田间理论（DEFT）的最新研究，该研究为将希格斯玻色子描述为复合结构提供了一个框架。我们首先将faft描述为应用于具有近似符号红外行为的一类理论的晶格数据。它包括与（近似）尺度不变性的自发破裂以及一组伪破坏型 - nambu-goldstone玻色子（PNGBS）相关的DILATON。该理论包含两个突破对称性的参数。我们显示了Lagrangian的前阶（LO）Lagrangian，并在基本表示中审查了$ su（3）$ gauge理论的拟合度（3）$ gauge理论。然后，我们制定了功率计数规则，以确定在Feft Action中近代领先顺序（NLO）出现的更正。我们列出了出现并提供系数估算的NLO操作员。我们评论对复合希格斯模型构建的影响。
We review and extend recent studies of dilaton effective field theory (dEFT) which provide a framework for the description of the Higgs boson as a composite structure. We first describe the dEFT as applied to lattice data for a class of gauge theories with near-conformal infrared behavior. It includes the dilaton associated with the spontaneous breaking of (approximate) scale invariance, and a set of pseudo-Nambu-Goldstone bosons (pNGBs) associated with the spontaneous breaking of an (approximate) internal global symmetry. The theory contains two small symmetry-breaking parameters. We display the leading-order (LO) Lagrangian, and review its fit to lattice data for the $SU(3)$ gauge theory with $N_f = 8$ Dirac fermions in the fundamental representation. We then develop power-counting rules to identify the corrections emerging at next-to-leading order (NLO) in the dEFT action. We list the NLO operators that appear and provide estimates for the coefficients. We comment on implications for composite-Higgs model building.
