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Title: A Little Twin Higgs Model

Abstract

We present a twin Higgs model based on left-right symmetry with a tree level quartic. This is made possible by extending the symmetry of the model to include two Z_2 parities, each of which is sufficient to protect the Higgs from getting a quadratically divergent mass squared. Although both parities are brokenexplicitly, the symmetries that protect the Higgs from getting a quadratically divergent mass are broken only collectively. The quadratic divergences of the Higgs mass are thus still protected at one loop. We find that the fine-tuning in this model is reduced substantially compared to the original left-right twin Higgs model. This mechanism can also be applied to the mirror twin Higgs model to get a significant reduction of the fine-tuning, while keeping the mirror photon massless.

Authors:
; ;
Publication Date:
Research Org.:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Sponsoring Org.:
Physics Division
OSTI Identifier:
934493
Report Number(s):
LBNL-482E
TRN: US0803918
DOE Contract Number:  
DE-AC02-05CH11231
Resource Type:
Journal Article
Journal Name:
Physical Review D
Additional Journal Information:
Journal Volume: 76; Related Information: Journal Publication Date: 27 December 2007
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; HIGGS MODEL; MIRRORS; PHOTONS; SYMMETRY

Citation Formats

Goh, Hock-Seng, Goh, Hock-Seng, and Krenke, Christopher A. A Little Twin Higgs Model. United States: N. p., 2007. Web. doi:10.1103/PhysRevD.76.115018.
Goh, Hock-Seng, Goh, Hock-Seng, & Krenke, Christopher A. A Little Twin Higgs Model. United States. https://doi.org/10.1103/PhysRevD.76.115018
Goh, Hock-Seng, Goh, Hock-Seng, and Krenke, Christopher A. Wed . "A Little Twin Higgs Model". United States. https://doi.org/10.1103/PhysRevD.76.115018. https://www.osti.gov/servlets/purl/934493.
@article{osti_934493,
title = {A Little Twin Higgs Model},
author = {Goh, Hock-Seng and Goh, Hock-Seng and Krenke, Christopher A},
abstractNote = {We present a twin Higgs model based on left-right symmetry with a tree level quartic. This is made possible by extending the symmetry of the model to include two Z_2 parities, each of which is sufficient to protect the Higgs from getting a quadratically divergent mass squared. Although both parities are brokenexplicitly, the symmetries that protect the Higgs from getting a quadratically divergent mass are broken only collectively. The quadratic divergences of the Higgs mass are thus still protected at one loop. We find that the fine-tuning in this model is reduced substantially compared to the original left-right twin Higgs model. This mechanism can also be applied to the mirror twin Higgs model to get a significant reduction of the fine-tuning, while keeping the mirror photon massless.},
doi = {10.1103/PhysRevD.76.115018},
url = {https://www.osti.gov/biblio/934493}, journal = {Physical Review D},
number = ,
volume = 76,
place = {United States},
year = {2007},
month = {7}
}