论文标题

质量分割模型中的复合希格斯场景

Composite Higgs scenario in mass-split models

论文作者

Witzel, Oliver, Hasenfratz, Anna, Peterson, Curtis T.

论文摘要

质量分割的复合材料Higgs模型自然可以容纳125 GEV Higgs玻色子的实验观察,并预测与其他较重共振的大规模分离。我们通过执行数值模拟探索具有四个光(无质量)和六种重量(大量)风味的SU(3)量规系统。由于具有退化和无质量的十种口味的基础系统似乎是红外形式的,因此该系统遗传了保形超级标准,并允许研究近乎符号的动力学。进行非扰动晶格场理论模拟,我们提出了低洼的粒子谱。我们证明了高度标准,预测相应的保质固定点的异常质量维度,并表明在研究的质量制度中,数据由Dilaton手性扰动理论描述。共形红外固定点的接近性导致高度预测性的粒子谱与QCD完全不同。此外,我们提出了有限温度研究的初步结果。

Mass-split composite Higgs models naturally accommodate the experimental observation of a light 125 GeV Higgs boson and predict a large scale separation to other heavier resonances. We explore the SU(3) gauge system with four light (massless) and six heavy (massive) flavors by performing numerical simulations. Since the underlying system with degenerate and massless ten flavors appears to be infrared conformal, this system inherits conformal hyperscaling and allows to study near-conformal dynamics. Carrying out nonperturbative lattice field theory simulations, we present the low-lying particle spectrum. We demonstrate hyperscaling, predict the anomalous mass dimension of the corresponding conformal fixed point, and show that in the investigated mass regime the data are described by dilaton chiral perturbation theory. The proximity of a conformal infrared fixed point leads to a highly predictive particle spectrum which is quite distinct from QCD. Further we present initial results of our finite temperature investigations.

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