Neutrino and 
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-even Higgs boson masses in a nonuniversal 
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 extension

Mantilla, S. F.; Martı́nez, R.; Ochoa, F.

doi:10.1103/physrevd.95.095037

Cited by 17 publications

(60 citation statements)

References 89 publications

(50 reference statements)

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“…Despite in this model we have 4 Higgs doubles, it recreates the same mass structure found in [2] when adopting the definitions (10-12). Thus, in the gauge boson sector we can split in two the acceptable parameter values given in the same reference in order to know the possible values for doublets VEV.…”

Section: Gauge Boson Massessupporting

confidence: 58%

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Nonuniversal U(1)X extension to the MSSM with three families

2019

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We propose a supersymmetric extension of the anomaly-free and three families nonuniversal U (1) model, with the inclusion of four Higgs doublets and four Higgs singlets. The quark sector is extended by adding three exotic quark singlets, while the lepton sector includes two exotic charged lepton singlets, three right-handed neutrinos and three sterile Majorana neutrinos to obtain the fermionic mass spectrum. By implementing an additional Z 2 symmetry, the Yukawa coupling terms are suited in such a way that the fermion mass hierarchy is obtained without fine-tuning. The effective mass matrix for SM neutrinos is fitted to current neutrino oscillation data to check the consistency of the model with experimental evidence, obtaining that the normal-ordering scheme is preferred over the inverse ones. The electron and up, down and strange quarks are massless at tree level, but they get masses through radiative correction at one loop level coming from the sleptons and Higgsinos contributions. We show that the model predicts a like-Higgs SM mass at electroweak scale by using the VEV according to the symmetry breaking and fermion masses.

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Section: Gauge Boson Massessupporting

confidence: 58%

“…The model generates the correct squared mass differences reported for neutrino oscillations [6]. However, that is a result that arise from the no-SUSY version of the model [2]…”

Section: Majorana Fermionsmentioning

confidence: 99%

Nonuniversal U(1)X extension to the MSSM with three families

2019

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“…Moreover, R even splits in a see-saw rotation R SS even and a block-diagonal rotation R B even such that R even = R B even R SS even . Since |M hh | < |M hξ | < |M ξξ | the see-saw procedure will be implemented by following the reference [72] which blockdiagonalizes M hh such that the h scalars get separated from the ξ ones. The following approximations are made on the blocks in order to avoid cumbersome expressions after rotating out the ξ scalars:…”

Section: Cp-even Boson Massesmentioning

confidence: 99%

Nonuniversal anomaly-free U(1) model with three Higgs doublets and one singlet scalar field

Mantilla¹,

Martı́nez²

2017

Phys. Rev. D

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The flavor problem, neutrino physics and the fermion mass hierarchy are important motivations to extend the Standard Model into the TeV scale. A new family non-universal extension is presented with three Higgs doublets, one Higgs singlet and one scalar dark matter candidate. Exotic fermions are included in order to cancel chiral anomalies and to allow family non-universal U(1) X charges. By implementing an additional Z2 symmetry the Yukawa coupling terms are suited in such a way that the fermion mass hierarchy is obtained without fine-tuning. The neutrino sector include Majorana fermions to implement inverse see-saw mechanism. The effective mass matrix for SM neutrinos is fitted to current neutrino oscillation data to check the consistency of the model with experimental evidence, obtaining that the normal-ordering scheme is preferred over the inverse ones and the values of the neutrino Yukawa coupling constants are shown. Finally, the h → τ µ lepton-flavor-violation process is addressed with the rotation matrices of the CP-even scalars, left-and right-handed charged leptons, yielding definite regions where the model is consistent with CMS reports of BR(h → τ µ).

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“…There are numerous possibilities for non-universal U (1) charges. These are classified in [27] and various aspects of their phenomenological implications have been studied both within non-SUSY and SUSY frameworks [28][29][30][31][32][33][34]. In this work, we revisit the supersymmetric U (1) models with non-universal charges, opting for a simple family dependent choice.…”

Section: Introductionmentioning

confidence: 99%

Dark matter and collider signals in supersymmetric U(1)′ models with nonuniversal Z′ couplings

2019

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We analyse supersymmetric models augmented by an extra U (1) gauge group. To avoid anomalies in these models without introducing exotics, we allow for family-dependent U (1) charges, and choose a simple form for these, dependent on one U (1) charge parameter only. With this choice, Z decays into di-taus but not di-leptons, weakening considerably the constraints on its mass. In the supersymmetric sector, the effect is to lower the singlino mass, allowing it to be the dark matter candidate. We investigate the dark matter constraints and collider implications of such models, with mostly singlino, or mostly higgsinos, or a mixture of the two as lightest supersymmetric particles. In these scenarios, Z decays significantly into chargino or neutralino pairs, and thus indirectly into final state leptons. We devise benchmarks which, with adequate cuts, can yield signals visible at the high-luminosity LHC.

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Neutrino and CP -even Higgs boson masses in a nonuniversal U(1)′ extension

Cited by 17 publications

References 89 publications

Nonuniversal U(1)X extension to the MSSM with three families

Nonuniversal U(1)X extension to the MSSM with three families

Nonuniversal anomaly-free U(1) model with three Higgs doublets and one singlet scalar field

Dark matter and collider signals in supersymmetric U(1)′ models with nonuniversal Z′ couplings

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