Strategies for Next Generation Neutrinoless Double-Beta Decay Experiments

Avignone, F. T.

doi:10.1016/j.nuclphysbps.2005.01.111

Cited by 25 publications

(16 citation statements)

References 20 publications

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“…2, one can see that most of the values of (M ν ) ee that are consistent with the bound on δa µ are lying in the range 10 −3 eV to ∼eV. The current bound on (M ν ) ee is approximately 0.35 eV [21] and it is expected that within few years a number of next generation ββ 0ν experiments will be sensitive to (M ν ) ee ∼ 10 −2 eV [22]. Fig.…”

Section: Experimental Constraintssupporting

confidence: 57%

Dark matter and strong electroweak phase transition in a radiative neutrino mass model

Ahriche

Nasri

2013

J. Cosmol. Astropart. Phys.

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We consider an extension of the standard model (SM) with charged singlet scalars and right handed (RH) neutrinos all at the electroweak scale. In this model, the neutrino masses are generated at three loops, which provide an explanation for their smallness, and the lightest RH neutrino, N 1 , is a dark matter candidate. We find that for three generations of RH neutrinos, the model can be consistent with the neutrino oscillation data, lepton flavor violating processes, N 1 can have a relic density in agreement with the recent Planck data, and the electroweak phase transition can be strongly first order. We also show that the charged scalars may enhance the branching ratio h → γγ, where as h → γZ get can get few percent suppression. We also discuss the phenomenological implications of the RH neutrinos at the collider.

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Section: Experimental Constraintssupporting

confidence: 57%

Dark matter and strong electroweak phase transition in a radiative neutrino mass model

Ahriche

Nasri

2013

J. Cosmol. Astropart. Phys.

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“…Since in this alternative version of µ-τ interchange symmetry the Majorana phases are either zero or π, there is a rather stringent correlation between the neutrino mass scale and m ββ , the effective Majorana mass in neutrinoless double-beta decay-see figures 2 and 4. It should be emphasized that m ββ may in our model assume quite large values, of order 0.1 eV, which might render it observable in upcoming experiments-see [21] and references therein.…”

Section: Discussionmentioning

confidence: 92%

Maximal CP violation in lepton mixing from a model with Δ(27) flavour symmetry

Ferreira

Grimus

Lavoura

et al. 2012

J. High Energ. Phys.

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We propose a simple mechanism which enforces |U µj | = |U τ j | ∀j = 1, 2, 3 in the lepton mixing matrix U . This implies maximal atmospheric neutrino mixing and a maximal CP-violating phase but does not constrain the reactor mixing angle θ 13 . We implement the proposed mechanism in two renormalizable seesaw models which have features strongly resembling those of models based on a flavour symmetry group ∆(27). Among the predictions of the models, there is a determination, although ambiguous, of the absolute neutrino mass scale, and a stringent correlation between the absolute neutrino mass scale and the effective Majorana mass in neutrinoless double-beta decay. *

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“…From Figure 4 one can clearly see that our model predicts m νee < ∼ 0.07 eV. The next generation of neutrino-less double experiments are expected to probe down to m νee = 0.01 − 0.05 eV [22]. The middle panel of this figure shows the total predicted neutrino mass m t and right panel shows m 2 β .…”

Section: Exact µ − τ Symmetry Limitmentioning

confidence: 73%

Lepton masses in a minimal model with triplet Higgs bosons andS3flavor symmetry

Mitra

Choubey

2008

Phys. Rev. D

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Viable neutrino and charged lepton masses and mixings are obtained by imposing a S 3 × Z 4 × Z 3 flavor symmetry in a model with a few additional Higgs. We use two SU (2) L triplet Higgs which are arranged as a doublet of S 3 , and standard model singlet Higgs which are also put as doublets of S 3 . We break the S 3 symmetry in this minimal model by giving vacuum expectation values (VEV) to the additional Higgs fields. Dictated by the minimum condition for the scalar potential, we obtain certain VEV alignments which allow us to maintain µ − τ symmetry in the neutrino sector, while breaking it maximally for the charged leptons. This helps us to simultaneously explain the hierarchical charged lepton masses, and the neutrino masses and mixings. In particular, we obtain maximal θ 23 and zero θ 13 . We allow for a mild breaking of the µ − τ symmetry for the neutrinos and study the phenomenology. We give predictions for θ 13 and the CP violating Jarlskog invariant J CP , as a function of the µ − τ symmetry breaking parameter. We also discuss possible collider signatures and phenomenology associated with lepton flavor violating processes.

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Strategies for Next Generation Neutrinoless Double-Beta Decay Experiments

Cited by 25 publications

References 20 publications

Dark matter and strong electroweak phase transition in a radiative neutrino mass model

Dark matter and strong electroweak phase transition in a radiative neutrino mass model

Maximal CP violation in lepton mixing from a model with Δ(27) flavour symmetry

Lepton masses in a minimal model with triplet Higgs bosons andS3flavor symmetry

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