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arXiv 1910.13699hep-ph
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复合2-Higgs双重态模型

A Composite 2-Higgs Doublet Model

Stefania De Curtis, Luigi Delle Rose, Stefano Moretti, Key Yagyu

摘要:

在复合希格斯模型的背景下,我们考虑实现一个扩展的希格斯部门与两个希格斯双峰产生的伪南武-戈德斯通玻色子从$\textrm{SO}(6) \to \textrm{SO}(4) \times \textrm{SO}(2)$打破。希格斯玻色子的性质得到的基本参数的复合部门,如质量,汤川和规范耦合的新的自旋1/2和自旋1共振。在通过费米子和规范玻色子的部分复合性对$\textrm{SO}(6)$全局对称性的显式破缺计算了Higgs势之后,主要的焦点是推导出希格斯玻色子的唯象性质,并突出了大型强子对撞机上复合2-Higgs双重模型的主要特征,包括对SM-like Higgs耦合的修改,更重Higgs态的产生和衰变通道。

英文摘要:

In the context of Composite Higgs Models we consider the realisation of an extended Higgs sector with two Higgs doublets arising as pseudo Nambu-Goldstone bosons from a $\textrm{SO}(6) \to \textrm{SO}(4) \times \textrm{SO}(2)$ breaking. The properties of the Higgses are obtained in terms of the fundamental parameters of the composite sector, such as masses, Yukawa and gauge couplings of the new spin-1/2 and spin-1 resonances. After computing the Higgs potential from the explicit breaking of the $\textrm{SO}(6)$ global symmetry by the partial compositeness of fermions and gauge bosons, the main focus is to derive the phenomenological properties of the Higgs bosons and to highlight the main signatures of the Composite 2-Higgs Doublet Model at the Large Hadron Collider, including modifications to the SM-like Higgs couplings, production and decay channels of heavier Higgs states.

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