Status of the KATRIN Experiment and Prospects to Search for keV-mass Sterile Neutrinos in Tritium β-decay

Mertens, S.

doi:10.1016/j.phpro.2014.12.043

Cited by 43 publications

(66 citation statements)

References 28 publications

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“…The experiment KATRIN [237], which is under construction and is scheduled to start data taking in 2016, will aim to reach a sensitivity of 0.2 eV at 90% C.L. for m β in five years of running 18 .…”

Section: Tritium β Decaymentioning

confidence: 99%

Light sterile neutrinos

Gariazzo

Giunti

Laveder

et al. 2015

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

224

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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Section: Tritium β Decaymentioning

confidence: 99%

Light sterile neutrinos

Gariazzo

Giunti

Laveder

et al. 2015

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

224

336

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“…which has been measured to be m e = 0.2 eV [97]. Additionally, the sum of neutrino masses has been measured by the Planck collaboration and the upper bound is i |m ν i | = 0.23 eV [98].…”

Section: The Effective Neutrinoless Mass Decaymentioning

confidence: 99%

Non-minimal flavored $${S}_{3}\otimes {Z}_{2}$$ S 3 ⊗ Z 2 left–right symmetric model

Gómez-Izquierdo

2017

Eur. Phys. J. C

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We propose a non-minimal left-right symmetric model with parity symmetry where the fermion mixings arise as a result of imposing an S 3 ⊗ Z 2 flavor symmetry, and an extra Z e 2 symmetry is considered in the lepton sector. Then the neutrino mass matrix possesses approximately the μ-τ symmetry. The breaking of the μ-τ symmetry induces sizable non-zero θ 13 , and the deviation of θ 23 from 45 • is strongly controlled by an free parameter and the neutrino masses. So, an analytic study of the CP parities in the neutrino masses is carried out to constrain the parameter and the lightest neutrino mass that accommodate the mixing angles. The results are: (a) the normal hierarchy is ruled out for any values of the Majorana phases; (b) for the inverted hierarchy the values of the reactor and atmospheric angles are compatible up to 2, 3 σ C.L.; (c) the degenerate ordering is the most favorable such that the reactor and atmospheric angle are compatible with the experimental data for a large set of values of the free parameters. The model predicts defined regions for the effective neutrino mass, the neutrino mass scale and the sum of the neutrino masses for the favored cases. Therefore, this model may be testable by the future experiments.

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“…In addition, figure 4 shows 5 the 90% C.L. sensitivity on m β of the KATRIN experiment [78], which is scheduled to start data taking in 2016, and figure 5 shows the 95% bayesian upper limit on Σ obtained by the Planck collaboration [65].…”

Section: Jhep07(2015)171mentioning

confidence: 99%

Predictions for neutrinoless double-beta decay in the 3+1 sterile neutrino scenario

Giunti

Zavanin

2015

J. High Energ. Phys.

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We present accurate predictions of the effective Majorana mass |m ββ | in neutrinoless double-β decay in the standard case of 3ν mixing and in the case of 3+1 neutrino mixing indicated by the reactor, Gallium and LSND anomalies. We have taken into account the uncertainties of the neutrino mixing parameters determined by oscillation experiments. It is shown that the predictions for |m ββ | in the cases of 3ν and 3+1 mixing are quite different, in agreement with previous discussions in the literature, and that future measurements of neutrinoless double-β decay and of the effective light neutrino mass in β decay or the total mass of the three lightest neutrinos in cosmological experiments may distinguish the 3ν and 3+1 cases if the mass ordering is determined by oscillation experiments. We also present a relatively simple method to determine the minimum value of |m ββ | in the general case of N -neutrino mixing.

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Status of the KATRIN Experiment and Prospects to Search for keV-mass Sterile Neutrinos in Tritium β-decay

Cited by 43 publications

References 28 publications

Light sterile neutrinos

Light sterile neutrinos

Non-minimal flavored $${S}_{3}\otimes {Z}_{2}$$ S 3 ⊗ Z 2 left–right symmetric model

Predictions for neutrinoless double-beta decay in the 3+1 sterile neutrino scenario

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