Neutrino predictions from a left-right symmetric flavored extension of the standard model

Hernández, A. E. Cárcamo; Kovalenko, Sergey; Valle, J. W. F.; Vaquera-Araujo, Carlos A.

doi:10.1007/jhep02(2019)065

Cited by 24 publications

(13 citation statements)

References 87 publications

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“…There are four solutions for m 1,2 , but they give the same value of m2 i j and the same absolute values of m 1,2,3 thus we only consider in detail the solution in Eqs (26). and(27).…”

mentioning

confidence: 99%

$$U(1)_{B-L}$$ extension of the standard model with $$S_3$$ symmetry

Vien

Long²,

Hernández

2020

Eur. Phys. J. C

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We propose a renormalizable $$B-L$$B-L Standard Model (SM) extension based on $$S_3$$S3 symmetry which successfully accommodates the observed fermion mass spectra and flavor mixing patterns as well as the CP violating phases. The small masses for the light active neutrinos are generated through a type I seesaw mechanism. The obtained physical parameters in the lepton sector are well consistent with the global fit of neutrino oscillations (Esteban et al. in J High Energy Phys 01:106, 2019) for both normal and inverted neutrino mass orderings. The model also predicts effective neutrino mass parameters of $${\langle m_{ee}\rangle }= {1.02\times 10^{-2}}\,{\mathrm {eV}},\, m_{\beta }= {1.25}\times 10^{-2}\,{\mathrm {eV}}$$⟨mee⟩=1.02×10-2eV,mβ=1.25×10-2eV for normal hierarchy (NH) and $${\langle m_{ee}\rangle } ={5.03}\times 10^{-2}\, {\mathrm {eV}},\, m_{\beta } ={5.05}\times 10^{-2}\, {\mathrm {eV}}$$⟨mee⟩=5.03×10-2eV,mβ=5.05×10-2eV for inverted hierarchy (IH) which are all well consistent with the future large and ultra-low background liquid scintillator detectors which has been discussed in Ref. (Zhao et al. in Chin Phys C 41(5):053001, 2017) or the limit of the effective neutrino mass can be reached by the planning of future experiments. The model results are consistent with and successfully accommodate the recent experimental values of the physical observables of the quark sector, including the six quark masses, the quark mixing angles and the CP violating phase in the quark sector.

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“…There are four solutions for m 1,2 , but they give the same value of m2 i j and the same absolute values of m 1,2,3 thus we only consider in detail the solution in Eqs (26). and(27).…”

mentioning

confidence: 99%

$$U(1)_{B-L}$$ extension of the standard model with $$S_3$$ symmetry

Vien

Long²,

Hernández

2020

Eur. Phys. J. C

Self Cite

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“…Nevertheless, it is particularly interesting to examine the interplay between the LR symmetry and a discrete flavor symmetry. This combination shapes and correlates the Yukawa sector, giving predictions for the flavor observables, i.e., neutrino masses and mixings [38][39][40][41][42]. In this work, we study the effects of combining a non-Abelian discrete flavor symmetry group D 4 with the LR symmetry.…”

Section: ð3þmentioning

confidence: 99%

Neutrino phenomenology in a left-right D4 symmetric model

et al. 2020

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We present a minimal left-right symmetric flavor model and analyze the predictions for the neutrino sector. In this scenario, the Yukawa sector is shaped by the dihedral D 4 symmetry which leads to correlations for the neutrino mixing parameters. We end up with the four possible solutions within this model. We further analyzed the impact of the upcoming long-baseline neutrino oscillation experiment, DUNE. Due to its high sensitivity, it has been observed that the DUNE will be able to rule out two of the solutions. Finally, the predictions for the neutrinoless double beta decay and the lepton flavor violating process μ → eγ for the model have also been examined.

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“…Although our study is motivated from a phenomenological point of view, it is worth mentioning that the texture zeros in fermion mass matrices can have dynamical origin from flavour symmetries. See, for example, the scenarios proposed in [64][65][66][67][68][69][70][71][72][73][74] where discrete as well as continuous symmetries were considered to explain the texture zeros. In particular, the recent work [66] considered a different version of LRSM where charged fermions receive masses from a universal seesaw mechanism while neutrinos acquire masses at the radiative level.…”

Section: Texture Zeros In Lepton Mass Matrices Of Lrsmmentioning

confidence: 99%

Phenomenological study of texture zeros in lepton mass matrices of minimal left-right symmetric model

Borgohain

Das

Borah

2019

J. High Energ. Phys.

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We consider the possibility of texture zeros in lepton mass matrices of the minimal left-right symmetric model (LRSM) where light neutrino mass arises from a combination of type I and type II seesaw mechanisms. Based on the allowed texture zeros in light neutrino mass matrix from neutrino and cosmology data, we make a list of all possible allowed and disallowed texture zeros in Dirac and heavy neutrino mass matrices which appear in type I and type II seesaw terms of LRSM. For the numerical analysis we consider those cases with maximum possible texture zeros in light neutrino mass matrix M ν , Dirac neutrino mass matrix M D , heavy neutrino mass matrix M RR while keeping the determinant of M RR non-vanishing, in order to use the standard type I seesaw formula. The possibility of maximum zeros reduces the free parameters of the model making it more predictive. We then compute the new physics contributions to rare decay processes like neutrinoless double beta decay, charged lepton flavour violation. We find that even for a conservative lower limit on left-right symmetry scale corresponding to heavy charged gauge boson mass 4.5 TeV, in agreement with collider bounds, for right-handed neutrino masses above 1 GeV, the new physics contributions to these rare decay processes can saturate the corresponding experimental bound. * happy@tezu.ernet.in † mkdas@tezu.ernet.in ‡ dborah@iitg.ac.in

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Neutrino predictions from a left-right symmetric flavored extension of the standard model

Cited by 24 publications

References 87 publications

$$U(1)_{B-L}$$ extension of the standard model with $$S_3$$ symmetry

$$U(1)_{B-L}$$ extension of the standard model with $$S_3$$ symmetry

Neutrino phenomenology in a left-right D4 symmetric model

Phenomenological study of texture zeros in lepton mass matrices of minimal left-right symmetric model

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