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Quantum Critical Higgs

机译:量子临界希格斯

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The appearance of the light Higgs boson at the LHC is difficult to explain, particularly in light of naturalness arguments in quantum field theory. However, light scalars can appear in condensed matter systems when parameters (like the amount of doping) are tuned to a critical point. At zero temperature these quantum critical points are directly analogous to the finely tuned standard model. In this paper, we explore a class of models with a Higgs near a quantum critical point that exhibits non-mean-field behavior. We discuss the parametrization of the effects of a Higgs emerging from such a critical point in terms of form factors, and present two simple realistic scenarios based on either generalized free fields or a 5D dual in anti–de Sitter space. For both of these models, we consider the processes g g → Z Z and g g → h h , which can be used to gain information about the Higgs scaling dimension and IR transition scale from the experimental data.
机译:大型强子对撞机上希格斯玻色子的出现很难解释,特别是根据量子场论中的自然论证。但是,当将参数(如掺杂量)调整到临界点时,轻质标量可能会出现在凝聚态系统中。在零温度下,这些量子临界点直接类似于微调的标准模型。在本文中,我们探索了一个在量子临界点附近具有希格斯(Higgs)的模型,该模型表现出非平均场行为。我们从形状因素的角度讨论了从这样一个临界点出现的希格斯效应的参数化,并提出了两个简单的现实场景,这些场景基于广义自由场或anti-Sitter空间中的5D对偶。对于这两个模型,我们考虑过程g g→Z Z和g g→h h,这些过程可用于从实验数据中获取有关希格斯尺度尺度和IR跃迁尺度的信息。

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