LHC diphoton resonance at $$750\,\text {GeV}$$ 750 GeV as an indication of $$SU(3)_L\times U(1)_X$$ S U ( 3 ) L × U ( 1 ) X electroweak symmetry

Hernández, A. E. Cárcamo; Nišandžić, Ivan

doi:10.1140/epjc/s10052-016-4230-6

Cited by 21 publications

(5 citation statements)

References 77 publications

(55 reference statements)

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“…Concerning models with an extended gauge symmetry, those based on the gauge symmetry SU(3) c × SU(3) L × U(1) X , also called 3-3-1 models, which introduce a family nonuniversal U(1) X symmetry [95][96][97][98][99][100][101][102][103][104][105][106], can provide an explanation for the origin of the family structure of the fermions. These models have the following phenomenological advantages: (i) The three family structure in the fermion sector can be understood in the 3-3-1 models from the cancellation of chiral anomalies and asymptotic freedom in QCD.…”

Section: Introductionmentioning

confidence: 99%

A variant of 3-3-1 model for the generation of the SM fermion mass and mixing pattern

Hernández

Kovalenko

Long

et al. 2018

J. High Energ. Phys.

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Abstract:We propose an extension of the 3-3-1 model with an additional symmetry group Z 2 × Z 4 × U(1) Lg and an extended scalar sector. To our best knowledge this is the first example of a renormalizable 3-3-1 model, which allows explanation the SM fermion mass hierarchy by a sequential loop suppression: tree-level top and exotic fermion masses, 1-loop bottom, charm, tau and muon masses; 2-loop masses for the light up, down, strange quarks as well as for the electron. The light active neutrino masses are generated from a combination of linear and inverse seesaw mechanisms at two loop level. The model also has viable fermionic and scalar dark matter candidates.

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Section: Introductionmentioning

confidence: 99%

A variant of 3-3-1 model for the generation of the SM fermion mass and mixing pattern

Hernández

Kovalenko

Long

et al. 2018

J. High Energ. Phys.

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“…( 34) is shown for convenience in order to explicitly display the hierarchy of the matrix elements of M l . To fit the measured values of the SM charged lepton masses [125], we solve the eigenvalue problem for the SM lepton mass matrix (34) and find the following solution:…”

Section: Charged Lepton Masses and Mixingsmentioning

confidence: 99%

Fermion spectrum and $$g-2$$ anomalies in a low scale 3-3-1 model

et al. 2021

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We propose a renormalizable theory based on the $$SU(3)_C\times SU(3)_L\times U(1)_X$$ S U ( 3 ) C × S U ( 3 ) L × U ( 1 ) X gauge symmetry, supplemented by the spontaneously broken $$U(1)_{L_g}$$ U ( 1 ) L g global lepton number symmetry and the $$S_3 \times Z_2 $$ S 3 × Z 2 discrete group, which successfully describes the observed SM fermion mass and mixing hierarchy. In our model the top and exotic quarks get tree level masses, whereas the bottom, charm and strange quarks as well as the tau and muon leptons obtain their masses from a tree level Universal seesaw mechanism thanks to their mixing with charged exotic vector like fermions. The masses for the first generation SM charged fermions are generated from a radiative seesaw mechanism at one loop level. The light active neutrino masses are produced from a loop level radiative seesaw mechanism. Our model successfully accommodates the experimental values for electron and muon anomalous magnetic dipole moments.

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“…In supersymmetry, the scalar partner of the goldstino could provide an explanation to the diphoton signal [97,147,167,335]. Other ideas, slightly more exotic, include: a model with a space-time varying electromagnetic coupling constant [135], Gluinonia [337], Squarkonium/Diquarkonium [299], flavons [244], axions in various incarnations [8,24,63,246,274,336], a natural Coleman-Weinberg theory [22,307], radiative neutrino mass models [264,325,327], and string-inspired models [19,132,188,240,254].…”

Section: Modelsmentioning

confidence: 99%

Precision tools and models to narrow in on the 750 GeV diphoton resonance

et al. 2016

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The hints for a new resonance at 750 GeV from ATLAS and CMS have triggered a significant amount of attention. Since the simplest extensions of the standard model cannot accommodate the observation, many alternatives have been considered to explain the excess. Here we focus on several proposed renormalisable weakly-coupled models and revisit results given in the literature. We point out that physically important subtleties are often missed or neglected. To facilitate the study of the excess we have created a collection of 40 model files, selected from recent literature, for the Mathematica package SARAH. With SARAH one can generate files to perform numerical studies using the tailormade spectrum generators FlexibleSUSY and SPheno. These have been extended to automatically include crucial higher order corrections to the diphoton and digluon decay rates for both CP-even and CP-odd scalars. Additionally, we have extended the UFO and CalcHep interfaces of SARAH, a

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LHC diphoton resonance at $$750\,\text {GeV}$$ 750 GeV as an indication of $$SU(3)_L\times U(1)_X$$ S U ( 3 ) L × U ( 1 ) X electroweak symmetry

Cited by 21 publications

References 77 publications

A variant of 3-3-1 model for the generation of the SM fermion mass and mixing pattern

A variant of 3-3-1 model for the generation of the SM fermion mass and mixing pattern

Fermion spectrum and $$g-2$$ anomalies in a low scale 3-3-1 model

Precision tools and models to narrow in on the 750 GeV diphoton resonance

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