arXiv 1809.096672018-09hep-ph

带隐藏扇区的复合希格斯模型

Composite Higgs Models with a Hidden Sector

Ann Nelson, Michael Park, Devin Walker

备注：: 50 pages, 38 figures
发表信息：: Phys. Rev. D 100, 076015 (2019)
DOI：: 10.1103/PhysRevD.100.076015

摘要：

我们讨论了复合希格斯模型的现象学，它自然地产生了一个质量为$126$ GeV的标准模型样希格斯玻色子。在这些模型中，复合尺度下的有效理论是弱耦合的，戈德斯通扇区充当了第三代夸克和隐藏规范扇区之间的门户。此外，隐藏的部门费米子产生了一个可计算的有效标量势与自然光标量共振。这些理论的一般预测是存在额外的伪南武戈德斯通玻色子与电弱尺度的截面和质量。在本文中，我们分析了一些简单的具体实现这个框架的碰撞签名。我们发现，尽管存在额外的弱耦合和强耦合粒子，这些粒子在运动学上都在目前的实验范围内，但在大型强子对撞机上很难分辨出这些通用特征，并且在没有$e^+ e^-$希格斯工厂（如CEPC）或表面探测器（如MATHUSLA）的情况下，这些特征可能仍然隐藏得很好。

英文摘要：

We discuss the phenomenology of composite Higgs models that naturally produce a Standard Model-like Higgs boson with a mass of $126$ GeV. The effective theory below the compositeness scale is weakly coupled in these models, and the goldstone sector acts as a portal between the third generation of quarks and a hidden gauge sector. The addition of hidden-sector fermions gives rise to a calculable effective scalar potential with a naturally light scalar resonance. The generic prediction of these theories is the existence of additional pseudo-Nambu Goldstone bosons with electroweak-scale cross sections and masses. In this paper we analyze the collider signatures for some simple concrete realizations of this framework. We find that despite the existence of additional weakly and strongly coupled particles that are kinematically within reach of current experiments, the generic signatures are difficult to resolve at the LHC, and could remain well-hidden in the absence of an $e^+ e^-$ Higgs factory such as the CEPC or a surface detector such as MATHUSLA.

机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。

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