Composite Higgs models with a hidden sector
Abstract
We discuss the phenomenology of composite Higgs models that naturally produce a Standard Model-like Higgs boson with a mass of 126 GeV. The effective theory below the compositeness scale is weakly coupled in these models, and the Goldstone sector acts as a portal between the third generation of quarks and a hidden gauge sector. The addition of hidden-sector fermions gives rise to a calculable effective scalar potential with a naturally light scalar resonance. The generic prediction of these theories is the existence of additional pseudo-Nambu Goldstone bosons with electroweak-scale cross sections and masses. In this paper we analyze the collider signatures for some simple concrete realizations of this framework. We find that despite the existence of additional weakly and strongly coupled particles that are kinematically within reach of current experiments, the generic signatures are difficult to resolve at the LHC, and could remain well hidden in the absence of an e+e- Higgs factory such as the CEPC or a surface detector such as MATHUSLA.
- Authors:
- Publication Date:
- Research Org.:
- Univ. of Washington, Seattle, WA (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), High Energy Physics (HEP); National Science Foundation (NSF); Simons Foundation
- OSTI Identifier:
- 1571316
- Alternate Identifier(s):
- OSTI ID: 1596190
- Grant/Contract Number:
- SC0011637; PHY-1607611
- Resource Type:
- Published Article
- Journal Name:
- Physical Review. D.
- Additional Journal Information:
- Journal Name: Physical Review. D. Journal Volume: 100 Journal Issue: 7; 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
Nelson, Ann E., Park, Michael, and Walker, Devin G. E. Composite Higgs models with a hidden sector. United States: N. p., 2019.
Web. doi:10.1103/PhysRevD.100.076015.
Nelson, Ann E., Park, Michael, & Walker, Devin G. E. Composite Higgs models with a hidden sector. United States. https://doi.org/10.1103/PhysRevD.100.076015
Nelson, Ann E., Park, Michael, and Walker, Devin G. E. Mon .
"Composite Higgs models with a hidden sector". United States. https://doi.org/10.1103/PhysRevD.100.076015.
@article{osti_1571316,
title = {Composite Higgs models with a hidden sector},
author = {Nelson, Ann E. and Park, Michael and Walker, Devin G. E.},
abstractNote = {We discuss the phenomenology of composite Higgs models that naturally produce a Standard Model-like Higgs boson with a mass of 126 GeV. The effective theory below the compositeness scale is weakly coupled in these models, and the Goldstone sector acts as a portal between the third generation of quarks and a hidden gauge sector. The addition of hidden-sector fermions gives rise to a calculable effective scalar potential with a naturally light scalar resonance. The generic prediction of these theories is the existence of additional pseudo-Nambu Goldstone bosons with electroweak-scale cross sections and masses. In this paper we analyze the collider signatures for some simple concrete realizations of this framework. We find that despite the existence of additional weakly and strongly coupled particles that are kinematically within reach of current experiments, the generic signatures are difficult to resolve at the LHC, and could remain well hidden in the absence of an e+e- Higgs factory such as the CEPC or a surface detector such as MATHUSLA.},
doi = {10.1103/PhysRevD.100.076015},
journal = {Physical Review. D.},
number = 7,
volume = 100,
place = {United States},
year = {Mon Oct 21 00:00:00 EDT 2019},
month = {Mon Oct 21 00:00:00 EDT 2019}
}
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