The Minimal Composite Higgs Model

By K. Agashe, Roberto Contino, A. Pomarol. 2004

1,453 citations recorded by the source corpus.

Abstract We study the idea of a composite Higgs in the framework of a five-dimensional AdS theory. We present the minimal model of the Higgs as a pseudo-Goldstone boson in which electroweak symmetry is broken dynamically via top loop effects, all flavour problems are solved, and contributions to electroweak precision observables are below experimental bounds. Since the 5D theory is weakly coupled, we are able to fully determine the Higgs potential and other physical quantities. The lightest resonances are expected to have a mass around 2 TeV and should be discovered at the LHC. The top sector is mostly composite and deviations from Standard Model couplings are expected.

Subfields: Astronomy and Astrophysics, Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/93858e2d856845045225ab5aaaeafe8e6cbe5bed

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In Astronomy and Astrophysics

1. Atlas Collaboration
2. M. Redi
3. Andrea Tesi
4. A. Wulzer
5. G. Panico
6. R. Rattazzi
7. A. Weiler
8. T. Konstandin

In Nuclear and High Energy Physics

1. Atlas Collaboration
2. Cms Collaboration
3. Gudrun Heinrich
4. Fabio Maltoni
5. A. Wulzer
6. G. Panico
7. Andrea Tesi
8. R. Rattazzi

Citations in the corpus

• Fundamental composite dynamics: A review (2020, methodology): “- the minimal composite Goldstone Higgs scenario [50] cannot be realized in a simple minimal way [51]: in fact, it is based on SO(5) → SO(4).”
• Effective Lagrangian for a light Higgs-like scalar (2013, methodology): “The last two columns of table 1 report the predictions of the Minimal Composite Higgs Model MCHM4 [13] and MCHM5 [52], where the SM fermions couple linearly to composite operators transforming as the spinorial and fundamental representations of SO(5), respectively.”
• Electroweak and Flavour Structure of a Warped Extra Dimension with Custodial Protection (2009, methodology): “in the gauge-Higgs unification scenario, where the structure of effective Yukawa couplings is obtained with the help of quark mass terms on the IR brane [12, 72].”
• Renormalization group scaling of Higgs operators and h → γγ decay (2013, methodology): “[22, 23], where, in the framework of minimal composite Higgs models (MCHM [24]),”
• UV descriptions of composite Higgs models without elementary scalars (2013, methodology): “Alternatively, one can use the AdS/CFT correspondence to recast a model of electroweak symmetry breaking in a strongly coupled, four-dimensional CFT to a weakly coupled model in a slice of AdS5 [26,27].”
• A first top partner hunter’s guide (2012, background): “However, in the last decade, thanks in particular to the holographic perspective on compositeness, semi-perturbative scenarios have been depicted and studied [3].”
• The composite twin Higgs scenario (2015, background): “In the ordinary, or Minimal [2], Composite Higgs construction, the ES”
• Probing the Standard Model with Higgs signal rates from the Tevatron, the LHC and a future ILC (2014, background): “This coupling pattern occurs, for example, in minimal composite Higgs models [125–127], where the Higgs couplings to fermions and vector bosons can be suppressed with different factors.”
• Search for production of vector-like quark pairs and of four top quarks in the lepton-plus-jets final state in $pp$ collisions at $\sqrt{s}=8$ TeV with the ATLAS detector (2015, background): “Alternatively, Little Higgs [4, 5] and Composite Higgs [6, 7] models introduce a spontaneously broken global symmetry, with the Higgs boson emerging as a pseudo-Nambu-Goldstone boson [8].”
• ΔF = 2 observables and fine-tuning in a warped extra dimension with custodial protection (2008, background): “Recently realistic models of EW symmetry breaking (EWSB) have been constructed [7–12] and one can even achieve gauge coupling unification [13, 14].”
• Twin Higgs mechanism and a composite Higgs boson (2015, methodology): “In order to compute the Higgs potential, we can integrate out the composite sector and match to the following effective lagrangian, constructed just with the low energy fields and the Σ in the SO(7) vacuum [6] Leff = (q̄(8) L)i/ p(δΠq0(p) + ΣΣΠq1(p))(q(8) L)j + ūR/ pΠ0(p)uR + (M(p)(q̄(8) L)iΣuR + h.”