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High Energy Physics - Phenomenology

arXiv:1608.05713 (hep-ph)
[Submitted on 19 Aug 2016]

Title:A Tale of Two Twin Higgses: Addressing Little Hierarchy in Natural 2HDM Framework

Authors:Jiang-Hao Yu
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Abstract:In original twin Higgs model, vacuum misalignment between electroweak and new physics scales is realized by adding explicit $\mathbb{Z}_2$ breaking term. Introducing additional twin Higgs could accommodate spontaneous $\mathbb{Z}_2$ breaking, which explains the origin of this misalignment. We introduce a class of two twin Higgs doublet models with most general scalar potential, and discuss general conditions which trigger electroweak and $\mathbb{Z}_2$ symmetry breaking. Various scenarios on realising the vacuum misalignment are systematically discussed in a natural two Higgs double model framework: explicit $\mathbb{Z}_2$ breaking, radiative $\mathbb{Z}_2$ breaking, tadpole-induced $\mathbb{Z}_2$ breaking, and quartic-induced $\mathbb{Z}_2$ breaking. We investigate the Higgs mass spectra and the Higgs phenomenology in these scenarios.
Comments: 34 pages, 7 figures
Subjects: High Energy Physics - Phenomenology (hep-ph)
Report number: ACFI-T16-22
Cite as: arXiv:1608.05713 [hep-ph]
  (or arXiv:1608.05713v1 [hep-ph] for this version)
  https://doi.org/10.48550/arXiv.1608.05713

Submission history

From: Jiang-Hao Yu [view email]
[v1] Fri, 19 Aug 2016 20:00:02 UTC (1,662 KB)
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