Constructing a composite Higgs model with built-in large separation of scales

O. Witzel, A. Hasenfratz
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引用次数: 2

Abstract

Experimentally the existence of a light 125 GeV Higgs boson is well established but so far no other heavier resonances have been observed. Viable models to describe the Higgs boson as composite particle require hence to exhibit a large separation of scales. This occurs naturally in systems located near a conformal fixed point irrespective whether the system lies outside or inside the conformal window. We demonstrate the latter case by investigating a mass-split model with four light and six heavy flavors. By construction mass-split models exhibit a large separation of scales and feature in addition a highly constrained hadron spectrum. We present results based on the low-lying connected meson spectrum. Although the light sector is chirally broken, we show that it exhibits hyperscaling which is typical for conformal systems.
构建一个内置大尺度分离的复合希格斯模型
在实验上,125gev的轻希格斯玻色子的存在已经得到了很好的证实,但到目前为止还没有观察到其他更重的共振。因此,将希格斯玻色子描述为复合粒子的可行模型需要表现出较大的尺度分离。这在靠近保形不动点的系统中自然发生,而不管该系统是在保形窗口外还是在保形窗口内。我们通过研究具有四种轻口味和六种重口味的质量分裂模型来证明后一种情况。通过构造,质量分裂模型具有较大的尺度分离,并具有高度约束的强子谱。我们给出了基于低洼连接介子谱的结果。虽然光扇区是手性破缺的,但我们表明它表现出典型的共形系统的超尺度。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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