论文标题

中性自然模型中的精密希格斯耦合:一种有效的现场理论方法

Precision Higgs Couplings in Neutral Naturalness Models: an Effective Field Theory Approach

论文作者

Heurtier, Lucien, Li, Hao-Lin, Song, Huayang, Su, Shufang, Su, Wei, Yu, Jiang-Hao

论文摘要

中性自然模型中的HIGGS部门为隐藏部门提供了门户,因此在当前和将来的山利组处的HIGGS耦合的测量在约束模型的参数空间方面起着核心作用。我们研究了一类中性自然性模型,其中希格斯玻色子是通用so(n)/so(n-1)coset结构的伪石玻色子。从自发的全局对称性破坏中整合了径向模式,我们在标准模型有效场理论中获得了各种尺寸六算子,并通过包括辐射校正来计算低能HIGG的有效电位。我们对当前和将来的山着耦合者的Higgs耦合精度测量进行了卡方拟合,并表明可以在未来Higgs工厂的HIGGS隐形衰减通道(带有HIGGS无形的衰减通道)中探索新的物理量表。

The Higgs sector in neutral naturalness models provides a portal to the hidden sectors, and thus measurements of Higgs couplings at current and future colliders play a central role in constraining the parameter space of the model. We investigate a class of neutral naturalness models, in which the Higgs boson is a pseudo-Goldstone boson from the universal SO(N)/SO(N-1) coset structure. Integrating out the radial mode from the spontaneous global symmetry breaking, we obtain various dimension-six operators in the Standard Model effective field theory, and calculate the low energy Higgs effective potential with radiative corrections included. We perform a chi-square fit to the Higgs coupling precision measurements at current and future colliders and show that the new physics scale could be explored up to 2.7 (2.8) TeV without (with) the Higgs invisible decay channels at future Higgs factories.

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