Minimal supersymmetric fat Higgs model

Harnik, Roni; Kribs, Graham D.; Larson, D. J.; Murayama, Hitoshi

doi:10.1103/physrevd.70.015002

Cited by 191 publications

(312 citation statements)

References 70 publications

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“…Now, for small tan β, the quantity in the left-hand-side is roughly the square of the physical Higgs boson mass M 2 Higgs (see Eqs. (2,12)). We thus have a rough upper bound on the size of the top-Yukawa contribution to the Higgs mass-squared parameter…”

Section: Discussionmentioning

confidence: 99%

“…This clearly shows that the SU(2) L × U(1) Y D-term potential is not playing a major role in electroweak symmetry breaking, although it gives a small correction to the Higgs boson mass through the second term of Eq. (12). In fact, this was the dynamics behind the reduction of fine-tuning in the minimally fine-tuned model of Ref.…”

Section: Scenario I -Supersymmetric Higgs With a "Non-supersymmetric"mentioning

confidence: 99%

“…Our scenario assumes that the dominant contribution to λ h is the first term in Eq. (12). This is most effective if λ 2 sin 2 2β is larger than the largest tree-level MSSM value, (g 2 + g ′2 )/2, which occurs if λ > ∼ 0.6 (0.7) for tan β ≃ 1.7 (2.2).…”

Section: Scenario I -Supersymmetric Higgs With a "Non-supersymmetric"mentioning

confidence: 99%

“…Requiring that λ, as well as the gauge and Yukawa couplings, are perturbative up to the unification scale of 10 16 GeV, the weak scale value of λ is constrained to be λ < ∼ (0.6 ∼ 0.8), depending on the value of tan β and the assumption on the field content between the weak and the unification scales [11]. A larger value of λ, however, may be obtained if some of the S, H u and H d fields are composite states arising at low scales [12] or if the gauge group is extended at the weak scale [13]. As we will see explicitly later, these values of λ can produce a stabilizing force in the Higgs potential (the quartic coupling) stronger than that arising from the SU(2)…”

Section: The Basic Frameworkmentioning

confidence: 99%

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μB-driven electroweak symmetry breaking

2006

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We consider a scenario in which the dominant quartic coupling for the Higgs doublets arises from the F -term potential, rather than the conventional SU (2) L × U (1) Y D-term potential, in supersymmetric theories. The quartic coupling arises from a superpotential interaction between the two Higgs doublets and a singlet field, but unlike the case in the next-to-minimal supersymmetric standard model the singlet field is not responsible for the generation of the supersymmetric or holomorphic supersymmetry-breaking masses for the Higgs doublets. We find that this naturally leads to a deviation from the conventional picture of top-Yukawa driven electroweak symmetry breaking -electroweak symmetry breaking is triggered by the holomorphic supersymmetry breaking mass for the Higgs doublets (the µB term). This allows a significant improvement for fine-tuning in electroweak symmetry breaking, since the top squarks do not play a major role in raising the Higgs boson mass or in triggering electroweak symmetry breaking and thus can be light. The amount of fine-tuning is given by the squared ratio of the lightest Higgs boson mass to the charged Higgs boson mass, which can be made better than 20%. Solid implications of the scenario include a small value for tan β, tan β < ∼ 3, and relatively light top squarks.

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Section: Discussionmentioning

confidence: 99%

Section: Scenario I -Supersymmetric Higgs With a "Non-supersymmetric"mentioning

confidence: 99%

Section: Scenario I -Supersymmetric Higgs With a "Non-supersymmetric"mentioning

confidence: 99%

Section: The Basic Frameworkmentioning

confidence: 99%

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μB-driven electroweak symmetry breaking

2006

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“…Instead, we may even retain the possibility of appearance of strong dynamics at the TeV scale as discussed in Ref. [13].…”

Section: Supersymmetry (Susy) Is An Attractive Idea As a New Physics mentioning

confidence: 99%

Non-decoupling effects in supersymmetric Higgs sectors

2011

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A wide class of Higgs sectors is investigated in supersymmetric standard models. When the lightest Higgs boson (h) looks the standard model one, the mass (m h ) and the triple Higgs boson coupling (the hhh coupling) are evaluated at the one-loop level in each model. While m h is at most 120-130 GeV in the minimal supersymmetric standard model (MSSM), that in models with an additional neutral singlet or triplet fields can be much larger. The hhh coupling can also be sensitive to the models: while in the MSSM the deviation from the standard model prediction is not significant, that can be 30-60 % in some models such as the MSSM with the additional singlet or with extra doublets and charged singlets. These models are motivated by specific physics problems like the µ-problem, the neutrino mass, the scalar dark matter and so on. Therefore, when h is found at the CERN Large Hadron Collider, we can classify supersymmetric models by measuring m h and the hhh coupling accurately at future collider experiments.

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Supertopcolor

Fukushima

Kitano

Yamaguchi

2011

J. High Energ. Phys.

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We consider a supersymmetric QCD with soft supersymmetry breaking terms as the dynamics for the electroweak symmetry breaking. We find various advantages compared to the non-supersymmetric models, such as a natural incorporation of the dynamical top-quark mass generation (the topcolor mechanism), the existence of a boson-pair condensation (the composite Higgs fields) and a large anomalous dimension of the composite operator to cure the flavor-changingneutral-current and the S-parameter crises of the technicolor theories. The knowledge of the weakly coupled description (the Seiberg duality) enables us to perform perturbative computations in strongly coupled theories. Working in a large flavor theory where perturbative calculations are reliable in the dual description, one can find a stable vacuum with chiral symmetry breaking. The top/bottom quarks and also the Higgsinos obtain masses through a dynamically generated superpotential.

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Minimal supersymmetric fat Higgs model

Cited by 191 publications

References 70 publications

μB-driven electroweak symmetry breaking

μB-driven electroweak symmetry breaking

Non-decoupling effects in supersymmetric Higgs sectors

Supertopcolor

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