Neutrinoless double-beta decay and neutrino physics

Rodejohann, Werner

doi:10.1088/0954-3899/39/12/124008

Cited by 209 publications

(229 citation statements)

References 128 publications

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“…The left panel refers to separate fits in each mass ordering, while the right panel to the global fit in any ordering. The main features of the allowed bands have been discussed in previous literature (see [21,22,[98][99][100][101] and refs. therein) and are not repeated here.…”

Section: Combined Constraints In the (σ M ββ ) Planementioning

confidence: 87%

Global constraints on absolute neutrino masses and their ordering

et al. 2017

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Within the standard three-neutrino framework, the absolute neutrino masses and their ordering (either normal, NO, or inverted, IO) are currently unknown. However, the combination of current data coming from oscillation experiments, neutrinoless double beta (0νββ) decay searches, and cosmological surveys, can provide interesting constraints for such unknowns in the sub-eV mass range, down to O(10 −1 ) eV in some cases. We discuss current limits on absolute neutrino mass observables by performing a global data analysis, that includes the latest results from oscillation experiments, 0νββ decay bounds from the KamLAND-Zen experiment, and constraints from representative combinations of Planck measurements and other cosmological data sets. In general, NO appears to be somewhat favored with respect to IO at the level of ∼ 2σ, mainly by neutrino oscillation data (especially atmospheric), corroborated by cosmological data in some cases. Detailed constraints are obtained via the χ 2 method, by expanding the parameter space either around separate minima in NO and IO, or around the absolute minimum in any ordering. Implications for upcoming oscillation and non-oscillation neutrino experiments, including β-decay searches, are also discussed.

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Section: Combined Constraints In the (σ M ββ ) Planementioning

confidence: 87%

Global constraints on absolute neutrino masses and their ordering

et al. 2017

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“…(C) The constraints on (−) ν µ disappearance obtained from the data of the CDHSW experiment [206], from the analysis [90] of the data of atmospheric neutrino oscillation experiments 13 , from the analysis [103,211] of the MINOS neutral-current data [212] and from the analysis of the SciBooNE-MiniBooNE neutrino [213] and antineutrino [214] data. Table 4 summarizes the statistical results obtained from global fits of the data above in the 3+1 and 3+2 schemes (see Section 2; for a global fit in the 3+1+1 scheme see Ref.…”

Section: Global Fits Of Short-baseline Datamentioning

confidence: 99%

Light sterile neutrinos

Gariazzo

Giunti

Laveder

et al. 2015

J. Phys. G: Nucl. Part. Phys.

228

336

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Abstract. The theory and phenomenology of light sterile neutrinos at the eV mass scale is reviewed. The reactor, Gallium and LSND anomalies are briefly described and interpreted as indications of the existence of short-baseline oscillations which require the existence of light sterile neutrinos. The global fits of short-baseline oscillation data in 3+1 and 3+2 schemes are discussed, together with the implications for β-decay and neutrinoless double-β decay. The cosmological effects of light sterile neutrinos are briefly reviewed and the implications of existing cosmological data are discussed. The review concludes with a summary of future perspectives.

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“…Given ϕ 2 − ϕ 1 ≈ π and sin 2 θ 13 1, one can obtain m ee ≈ m 1 cos 2θ 12 in the limit of nearly-degenerate neutrino masses. As shown in figure 2, such a large effective neutrino mass is almost reached by current 100 kilogram-scale experiments, will be definitely accessible by the future multi-ton scale experiments [74,75]. On the other hand, the effective neutrino mass relevant for beta decays is defined as…”

Section: Jhep09(2016)167mentioning

confidence: 99%

Viability of exact tri-bimaximal, golden-ratio and bimaximal mixing patterns and renormalization-group running effects

Zhang

Zhou

2016

J. High Energ. Phys.

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In light of the latest neutrino oscillation data, we examine whether the leptonic flavor mixing matrix can take on an exact form of tri-bimaximal (TBM), golden-ratio (GR) or bimaximal (BM) mixing pattern at a superhigh-energy scale, where such a mixing pattern could be realized by a flavor symmetry, and become compatible with experimental data at the low-energy scale. Within the framework of the Minimal Supersymmetric Standard Model (MSSM), the only hope for realizing such a possibility is to count on the corrections from the renomalization-group (RG) running. In this work we focus on these radiative corrections, and fully explore the allowed parameter space for each of these mixing patterns. We find that when the upper bound on the sum of neutrino masses Σ ν ≡ m 1 + m 2 + m 3 < 0.23 eV at the 95% confidence level from Planck 2015 is taken into account, none of these mixing patterns can be identified as the leptonic mixing matrix below the seesaw threshold. If this cosmological upper bound on the sum of neutrino masses were relaxed, the TBM and GR mixing patterns would still be compatible with the latest neutrino oscillation data at the 3σ level, but not at the 1σ level. Even in this case, no such a possibility exists for the BM mixing.

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Neutrinoless double-beta decay and neutrino physics

Cited by 209 publications

References 128 publications

Global constraints on absolute neutrino masses and their ordering

Global constraints on absolute neutrino masses and their ordering

Light sterile neutrinos

Viability of exact tri-bimaximal, golden-ratio and bimaximal mixing patterns and renormalization-group running effects

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