Precision Higgs couplings in neutral naturalness models: an effective field theory approach

被引：0

作者：

Lucien Heurtier

Hao-Lin Li

Huayang Song

Shufang Su

Wei Su

Jiang-Hao Yu

机构：

[1] University of Arizona,Department of Physics

[2] Chinese Academy of Sciences,CAS Key Laboratory of Theoretical Physics, Institute of Theoretical Physics

[3] University of Adelaide,ARC Centre of Excellence for Particle Physics at the Terascale, Department of Physics

[4] University of Chinese Academy of Sciences,School of Physical Sciences

[5] University of Chinese Academy of Sciences,School of Fundamental Physics and Mathematical Sciences, Hangzhou Institute for Advanced Study

来源：

Journal of High Energy Physics | / 2021卷

关键词：

Supersymmetry Phenomenology;

D O I：

暂无

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摘要：

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 χ2 fit to the Higgs coupling precision measurements at current and future colliders and show that the new physics scale could be explored up to 2.3 (2.4) TeV without (with) the Higgs invisible decay channels at future Higgs factories. The limits are comparable to the indirect constraints obtained via electroweak precision measurements.

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