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

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

Research output: Contribution to journalArticlepeer-review

Abstract

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.

Original languageEnglish (US)
Article number234
JournalJournal of High Energy Physics
Volume2021
Issue number2
DOIs
StatePublished - Feb 2021

Keywords

  • Supersymmetry Phenomenology

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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