Quark masses and mixings in the RS1 model with a condensing 4th generation

Hernández, A. E. Cárcamo; Dib, Claudio O.; Neill, Nicolás A.; Zerwekh, Alfonso R.

doi:10.1007/jhep02(2012)132

Cited by 24 publications

(14 citation statements)

References 32 publications

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“…Following the formalism introduced in Sect. 2 we find that 10,20). The same conclusions of no restrictions to our model can also be drawn for the remaining decay channels from which the experimental upper bounds for the production cross section times the branching ratio are available.…”

Section: Unitarity Limits For the Preferred Values Of The Higgs Couplsupporting

confidence: 73%

“…The dependence of c γ on c W , c ρ ± , and c t in (37) is given by (39). The c Z , c W , and c ρ ± are, in turn, related to a V and a ρ via (20).…”

Section: Full Fit Analysismentioning

confidence: 99%

“…Another widely studied possibility is to embed the composite Higgs in an effective SU (2) doublet [11][12][13][14][15][16][17][18][19][20][21][22][23][24][25][26][27] where its lightness would be guaranteed by the theory's particularities.…”

Section: Introductionmentioning

confidence: 99%

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The limits on the strong Higgs sector parameters in the presence of new vector resonances

Gintner

Juran

2016

Eur. Phys. J. C

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In this paper, we investigate how the LHC data limit the Higgs-related couplings in the effective description of a strongly interacting extension of the Standard model. The Higgs boson is introduced as a scalar composite state and it is followed in the mass hierarchy by an SU (2) triplet of vector composites. The limits are calculated from the constraints obtained in the recent ATLAS+CMS combined analysis of the data from 2011 and 2012. We find that the data prefer the scenario where the Higgs couplings to the electroweak gauge bosons differ from its couplings to the vector triplet. We also investigate the unitarity limits of the studied effective model for the experimentally preferred values of the Higgs couplings. We find from the ππ → ππ scattering amplitudes that for the vector resonance masses between one and two TeV significant portions of the experimentally allowed regions are well below the unitarity limit. We also evaluate how the existing ATLAS and CMS Run-2 data restrict our model with the upper bounds on the resonance production cross section times its branching ratio for various decay channels. The masses in the range 1 TeV ≤ M ρ ≤ 2 TeV are not excluded in parts or even full parameter space of our theory.

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Section: Unitarity Limits For the Preferred Values Of The Higgs Couplsupporting

confidence: 73%

“…The dependence of c γ on c W , c ρ ± , and c t in (37) is given by (39). The c Z , c W , and c ρ ± are, in turn, related to a V and a ρ via (20).…”

Section: Full Fit Analysismentioning

confidence: 99%

See 1 more Smart Citation

The limits on the strong Higgs sector parameters in the presence of new vector resonances

Gintner

Juran

2016

Eur. Phys. J. C

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“…The TeV scale can be generated at the brane located at y = πR if the compactification radius R is such that ke −πkR = 1 TeV, which in turn means kR ≃ 12, also a rather natural number. The electroweak gauge symmetry in the bulk has to be extended to SU (2) L ⊗ SU (2) R ⊗ U (1) B−L in order to avoid a too large violation of the custodial symmetry caused by U (1) Y Kaluza-Klein (KK) modes [99,[106][107][108][109][110][111][112][113][114][115]. Since the custodial symmetry is preserved in our model, the T parameter is consistent with the experimental data.…”

Section: The Modelmentioning

confidence: 57%

Novel Randall-Sundrum model withS3flavor symmetry

2016

Self Cite

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We propose a simple and predictive model of fermion masses and mixing in a warped extra dimension, with the smallest discrete non-Abelian group S3 and the discrete symmetries Z2 ⊗ Z4. Standard Model fields propagate in the bulk and the mass hierarchies and mixing angles are accounted for the fermion zero modes localization profiles, similarly to the the Randall-Sundrum (RS) model. To the best of our knowledge, this model is the first implementation of an S3 flavor symmetry in this type of warped extra dimension framework. Our model successfully describes the fermion masses and mixing pattern and is consistent with the current low energy fermion flavor data. The discrete flavor symmetry in our model leads to predictive mixing inspired textures, where the Cabbibo mixing arises from the down type quark sector whereas up type quark sector contributes to the remaining mixing angles.

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“…From the phenomenological point of view, it is possible to describe some features of the mass hierarchy by assuming zero-texture Yukawa matrices [21][22][23][24][25][26][27][28][29][30][31][32][33][34][35]. Recently, discrete groups have been considered to explain the observed pattern of fermion masses and mixing .…”

Section: Introductionmentioning

confidence: 99%

$$S_3$$ S 3 discrete group as a source of the quark mass and mixing pattern in $$331$$ 331 models

2015

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We propose a model based on the SU (3) C ⊗ SU (3) L ⊗ U (1) X gauge symmetry with an extra S 3 ⊗ Z 2 ⊗ Z 4 ⊗ Z 12 discrete group, which successfully accounts for the SM quark mass and mixing pattern. The observed hierarchy of the SM quark masses and quark mixing matrix elements arises from the Z 4 and Z 12 symmetries, which are broken at a very high scale by the SU (3) L scalar singlets (σ ,ζ ) and τ , charged under these symmetries, respectively. The Cabbibo mixing arises from the down-type quark sector whereas the up quark sector generates the remaining quark mixing angles. The obtained magnitudes of the CKM matrix elements, the CP violating phase, and the Jarlskog invariant are in agreement with the experimental data.

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Quark masses and mixings in the RS1 model with a condensing 4th generation

Cited by 24 publications

References 32 publications

The limits on the strong Higgs sector parameters in the presence of new vector resonances

The limits on the strong Higgs sector parameters in the presence of new vector resonances

Novel Randall-Sundrum model withS3flavor symmetry

$$S_3$$ S 3 discrete group as a source of the quark mass and mixing pattern in $$331$$ 331 models

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