Tadpole-induced electroweak symmetry breaking and pNGB Higgs models

Harnik, Roni; Howe, Kiel; Kearney, John

doi:10.1007/jhep03(2017)111

Cited by 36 publications

(38 citation statements)

References 91 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Flavor constraints on the Holograpic and composite Twin Higgs have recently been presented finding reduced tension as compared to regular composite Higgs models [20]. Various options for the breaking of Z 2 and the way they affect the tuning of the model have also been investigated [21][22][23][24].…”

Section: Jhep07(2017)023mentioning

confidence: 99%

Cosmology in Mirror Twin Higgs and neutrino masses

Chacko

Craig

Fox

et al. 2017

J. High Energ. Phys.

Self Cite

122

184

View full text Add to dashboard Cite

We explore a simple solution to the cosmological challenges of the original Mirror Twin Higgs (MTH) model that leads to interesting implications for experiment. We consider theories in which both the standard model and mirror neutrinos acquire masses through the familiar seesaw mechanism, but with a low right-handed neutrino mass scale of order a few GeV. In these νMTH models, the right-handed neutrinos leave the thermal bath while still relativistic. As the universe expands, these particles eventually become nonrelativistic, and come to dominate the energy density of the universe before decaying. Decays to standard model states are preferred, with the result that the visible sector is left at a higher temperature than the twin sector. Consequently the contribution of the twin sector to the radiation density in the early universe is suppressed, allowing the current bounds on this scenario to be satisfied. However, the energy density in twin radiation remains large enough to be discovered in future cosmic microwave background experiments. In addition, the twin neutrinos are significantly heavier than their standard model counterparts, resulting in a sizable contribution to the overall mass density in neutrinos that can be detected in upcoming experiments designed to probe the large scale structure of the universe.

show abstract

Section: Jhep07(2017)023mentioning

confidence: 99%

Cosmology in Mirror Twin Higgs and neutrino masses

Chacko

Craig

Fox

et al. 2017

J. High Energ. Phys.

Self Cite

122

184

View full text Add to dashboard Cite

show abstract

“…There are a wide variety of uses of a new, strongly-coupled, confining group. One use is to at least partially break electroweak symmetry dynamically, such as bosonic technicolor [1][2][3][4][5][6][7][8][9] and the closely related ideas on strongly-coupled induced electroweak symmetry breaking [10][11][12][13][14][15][16][17][18][19][20]. Composite Higgs theories also posit a new strongly-coupled sector in which at least an entire Higgs doublet emerges in the low energy effective theory (the literature is far too vast to survey, for a review see e.g., [21]).…”

Section: Introductionmentioning

confidence: 99%

Effective theories of dark mesons with custodial symmetry

Kribs

Martin

Tong

2019

J. High Energ. Phys.

View full text Add to dashboard Cite

Dark mesons are bosonic composites of a new, strongly-coupled sector beyond the Standard Model. We consider several dark sectors with fermions that transform under the electroweak group, as arise from a variety of models including strongly-coupled theories of dark matter (e.g., stealth dark matter), bosonic technicolor (strongly-coupled indcued electroweak symmetry breaking), vector-like confinement, etc. We consider theories with two and four flavors under an SU (N ) strong group that acquire variously chiral, vector-like, and mixed contributions to their masses. We construct the nonlinear sigma model describing the dark pions and match the ultraviolet theory onto a low energy effective theory that provides the leading interactions of the lightest dark pions with the Standard Model. We uncover two distinct classes of effective theories that are distinguishable by how the lightest dark pions decay: "Gaugephilic": where π 0 → Zh, π ± → W h dominate once kinematically open, and "Gaugephobic": where π 0 →f f , π ± →f f dominate. Custodial SU (2) plays a critical role in determining the "philic" or "phobic" nature of a model. In dark sectors that preserve custodial SU (2), there is no axial anomaly, and so the decay π 0 → γγ is highly suppressed. In a companion paper, we study dark pion production and decay at colliders, obtaining the constraints and sensitivity at the LHC.

show abstract

“…Composite Twin Higgs models have been shown to be consistent with precision electroweak constraints [26] and flavor bounds [27]. Various possibilities for the breaking of the discrete Z 2 symmetry and their effects on tuning have been studied [28][29][30][31][32].…”

Section: Introductionmentioning

confidence: 99%

Testing the scalar sector of the twin Higgs model at colliders

et al. 2018

View full text Add to dashboard Cite

We consider Mirror Twin Higgs models in which the breaking of the global symmetry is realized linearly. In this scenario, the radial mode in the Higgs potential is present in the spectrum, and constitutes a second portal between the twin and SM sectors. We show that a study of the properties of this particle at colliders, when combined with precision measurements of the light Higgs, can be used to overdetermine the form of the scalar potential, thereby confirming that it possesses an enhanced global symmetry as dictated by the Twin Higgs mechanism. We find that, although the reach of the LHC for this state is limited, future linear colliders will be able to explore a significant part of the preferred parameter space, allowing the possibility of directly testing the Twin Higgs framework.

show abstract

Tadpole-induced electroweak symmetry breaking and pNGB Higgs models

Cited by 36 publications

References 91 publications

Cosmology in Mirror Twin Higgs and neutrino masses

Cosmology in Mirror Twin Higgs and neutrino masses

Effective theories of dark mesons with custodial symmetry

Testing the scalar sector of the twin Higgs model at colliders

Contact Info

Product

Resources

About