<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>H</mml:mi></mml:math>parity and the stable Higgs boson in the<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>S</mml:mi><mml:mi>O</mml:mi><mml:mo stretchy="false">(</mml:mo><mml:mn>5</mml:mn><mml:mo stretchy="false">)</mml:mo><mml:mo>×</mml:mo><mml:mi>U</mml:mi><mml:mo stretchy="false">(</mml:mo><mml:mn>1</mml:mn><mml:mo stretchy="false">)</mml:mo></mml:math>gauge-Higgs unification

Hosotani, Yutaka; Tanaka, Minoru; Uekusa, Nobuhiro

doi:10.1103/physrevd.82.115024

Cited by 22 publications

(31 citation statements)

References 59 publications

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“…In general κ j and µ j become 3-by-3 matrices in the generation space. With Φ 16 = 0, (20) generates six types of fermion mass terms, in which u and u ′ do not appear. The masses of up-type quarks are determined by the bulk mass parameters c Ψ32 and θ H .…”

Section: (C) Brane Interactions and The Fermion Mass Spectrummentioning

confidence: 99%

Gauge-Higgs EW and Grand Unification

Hosotani

2016

New Physics at the Large Hadron Collider

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4DHiggs field is identified with the extra-dimensional component of gauge potentials in the gauge-Higgs unification scenario. SO(5)×U (1) gaugeHiggs EW unification in the Randall-Sundrum warped space is successful at low energies. The Higgs field appears as an Aharonov-Bohm phase θH in the fifth dimension. Its mass is generated at the quantum level and is finite. The model yields almost the same phenomenology as the standard model for θH < 0.1, and predicts Z ′ bosons around 6 -10 TeV with very broad widths. The scenario is genelarized to SO(11) gauge-Higgs grand unification. Fermions are introduced in the spinor and vector representations of SO(11). Proton decay is naturally forbidden.

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Section: (C) Brane Interactions and The Fermion Mass Spectrummentioning

confidence: 99%

Gauge-Higgs EW and Grand Unification

Hosotani

2016

New Physics at the Large Hadron Collider

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“…In the minimal SO(5)×U (1) gauge-Higgs unification model, in which only quark-lepton vector multiplets and associated brane fermions are introduced in the fermion sector, the effective potential is minimized at θ H = 1 2 π, which in turn implies that the Higgs boson becomes stable, contradicting with the observation. [11,13,61] To have an unstable Higgs boson, it is necessary to introduce fermion multiplets in the spinor representation of SO (5) which do not appear at low energies. [15] Indeed, the presence of these fermions, with the gauge fields and top quark multiplet, naturally leads to 0 < θ H < 1 2 π, yielding predictions consistent with the observation.…”

Section: Introductionmentioning

confidence: 99%

Dark matter in the SO(5) x U(1) gauge-Higgs unification

Funatsu

Hatanaka

Hosotani

et al. 2014

Progress of Theoretical and Experimental Physics

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In the SO(5)×U (1) gauge-Higgs unification the lightest, neutral component of n F SO(5)-spinor fermions (dark fermions), which are relevant for having the observed unstable Higgs boson, becomes the dark matter of the universe. We show that the relic abundance of the dark matter determined by WMAP and Planck data is reproduced, below the bound placed by the direct detection experiment by LUX, by a model with one light and three heavier (n F = 4) dark fermions with the lightest one of a mass from 2.3 TeV to 3.1 TeV. The corresponding Aharonov-Bohm phase θ H in the fifth dimension ranges from 0.097 to 0.074. The case of n F = 3 (n F = 5, 6) dark fermions yields the relic abundance smaller (larger) than the observed limit.

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“…[13] We analyze phenomenological consequences of the model given in refs. [18] and [20]. The model without leptons was introduced in ref.…”

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Collider signatures of theSO(5)×U(1)gauge-Higgs unification

2011

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Collider signatures of the SO(5) × U (1) gauge-Higgs unification model in the Randall-Sundrum warped space are explored. Gauge couplings of quarks and leptons receive small corrections from the fifth dimension whose effects are tested by the precision data. It is found that the forward-backward asymmetries in e + e − collisions on the Z pole are well explained in a wide range of the warp factor z L , but the model is consistent with the branching fractions of Z decay only for large z L > ∼ 10 15 . Kaluza-Klein (KK) spectra of gauge bosons, quarks, and leptons as well as gauge and Higgs couplings of low-lying KK excited states are determined. Right-handed quarks and leptons have larger couplings to the KK gauge bosons than left-handed ones. Production rates of Higgs bosons and KK states at Tevatron, LHC and ILC are evaluated. The first KK Z has a mass 1130 GeV with a width 422 GeV for z L = 10 15 . The current limit on the Z ′ production at Tevatron and LHC indicates z L > 10 15 . A large effect of parity violation appears in the difference between the rapidity distributions of e + and e − in the decay of the first KK Z. The first KK gauge bosons decay into light and heavy quarks evenly. ModelThe SO(5) × U(1) gauge-Higgs unification scenario was proposed by Agashe, Contino, and Pomarol. [13] We analyze phenomenological consequences of the model given in refs. [18] and [20]. The model without leptons was introduced in ref. [17]. It has been shown that the model has H parity invariance which leads to the stable Higgs boson. [19,20] The model is defined in the Randall-Sundrum (RS) warped space with a metricwhere η µν = diag(−1, 1, 1, 1), σ(y) = σ(y + 2L) = σ(−y), and σ(y) = k|y| for |y| ≤ L.The Planck and TeV branes are located at y = 0 and y = L, respectively. The bulk region

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Hparity and the stable Higgs boson in theSO(5)×U(1)gauge-Higgs unification

Cited by 22 publications

References 59 publications

Gauge-Higgs EW and Grand Unification

Gauge-Higgs EW and Grand Unification

Dark matter in the SO(5) x U(1) gauge-Higgs unification

Collider signatures of theSO(5)×U(1)gauge-Higgs unification

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