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Title: Natural top-bottom mass hierarchy in composite Higgs models

Abstract

We consider composite two-Higgs doublet models based on gauge-Yukawa theories with strongly interacting fermions generating the top-bottom mass hierarchy. The model features a single "universal" Higgs-Yukawa coupling, $g$, which is identified with the top quark $$g\equiv g_t \sim \mathcal{O}(1)$$. The top-bottom mass hierarchy arises by soft breaking of a $$\mathbb{Z}_2$$ symmetry by a condensate of strongly interacting fermions. A mass splitting between vector-like masses of the confined techni-fermions controls this top-bottom mass hierarchy. This mechanism can be present in a variety of models based on vacuum misalignment. For concreteness, we demonstrate it in a composite two-Higgs scheme.

Authors:
ORCiD logo; ORCiD logo
Publication Date:
Research Org.:
Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC), High Energy Physics (HEP); The Council For Independent Research; Danish National Research Foundation (DNRF)
OSTI Identifier:
1630246
Alternate Identifier(s):
OSTI ID: 1606569
Report Number(s):
arXiv:2002.04931; CP3-Origins-2020-02 DNRF90; FERMILAB-PUB-20-055-T
Journal ID: ISSN 2470-0010; PRVDAQ; 095027
Grant/Contract Number:  
AC02-07CH11359; DFF 6108-00623; DNRF90
Resource Type:
Published Article
Journal Name:
Physical Review D
Additional Journal Information:
Journal Name: Physical Review D Journal Volume: 101 Journal Issue: 9; Journal ID: ISSN 2470-0010
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS

Citation Formats

Rosenlyst, Martin, and Hill, Christopher T. Natural top-bottom mass hierarchy in composite Higgs models. United States: N. p., 2020. Web. doi:10.1103/PhysRevD.101.095027.
Rosenlyst, Martin, & Hill, Christopher T. Natural top-bottom mass hierarchy in composite Higgs models. United States. doi:https://doi.org/10.1103/PhysRevD.101.095027
Rosenlyst, Martin, and Hill, Christopher T. Wed . "Natural top-bottom mass hierarchy in composite Higgs models". United States. doi:https://doi.org/10.1103/PhysRevD.101.095027.
@article{osti_1630246,
title = {Natural top-bottom mass hierarchy in composite Higgs models},
author = {Rosenlyst, Martin and Hill, Christopher T.},
abstractNote = {We consider composite two-Higgs doublet models based on gauge-Yukawa theories with strongly interacting fermions generating the top-bottom mass hierarchy. The model features a single "universal" Higgs-Yukawa coupling, $g$, which is identified with the top quark $g\equiv g_t \sim \mathcal{O}(1)$. The top-bottom mass hierarchy arises by soft breaking of a $\mathbb{Z}_2$ symmetry by a condensate of strongly interacting fermions. A mass splitting between vector-like masses of the confined techni-fermions controls this top-bottom mass hierarchy. This mechanism can be present in a variety of models based on vacuum misalignment. For concreteness, we demonstrate it in a composite two-Higgs scheme.},
doi = {10.1103/PhysRevD.101.095027},
journal = {Physical Review D},
number = 9,
volume = 101,
place = {United States},
year = {2020},
month = {5}
}

Journal Article:
Free Publicly Available Full Text
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DOI: https://doi.org/10.1103/PhysRevD.101.095027

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