Constraints on the Active and Sterile Neutrino Masses from Beta-Ray Spectra: Past, Present and Future1

Dragoun, O.; Vénos, D.

doi:10.2174/1874843001603010073

Cited by 12 publications

(14 citation statements)

References 275 publications

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“…3). Direct searches for sterile neutrinos looking for anomalous features in beta decay spectra [49][50][51][52] suggest that Oð0.001 − 0.01Þ mixings between active and sterile neutrinos-as required by MiniBooNE-are allowed for m 4 ≲ few keV.…”

Section: Constraintsmentioning

confidence: 99%

Decaying sterile neutrinos and the short baseline oscillation anomalies

et al. 2020

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The MiniBooNE experiment has observed a significant excess of electron neutrinos in a muon neutrino beam, in conflict with standard neutrino oscillations. We discuss the possibility that this excess is explained by a sterile neutrino with a mass ∼1 keV that decays quickly back into active neutrinos plus a new light boson. This scenario satisfies terrestrial and cosmological constraints because it has neutrino selfinteractions built-in. Accommodating also the LSND, reactor, and gallium anomalies is possible, but requires an extension of the model to avoid cosmological limits.

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Section: Constraintsmentioning

confidence: 99%

Decaying sterile neutrinos and the short baseline oscillation anomalies

et al. 2020

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“…can be obtained from the shape of the e − spectrum near the endpoint in tritium β decay, 3 H → 3 He e − νe (e.g., Otten and Weinheimer, 2008;Dragoun and Vénos, 2016). In (9.56) m i is the i th mass eigenvalue, independent of whether it is Dirac or Majorana, and V is the leptonic mixing matrix as defined in (9.36).…”

Section: Neutrino Mass Constraintsmentioning

confidence: 99%

The Standard Model and Beyond

Langacker¹

2017

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This eBook was converted to open access in 2021 through the sponsorship of SCOAP3 licensed under the terms of the creative commons Attribution-NonCommercial 4.0 International License (https://creativecommons.org/licenses/by-nc/4.0/) which permits use, sharing, adaptation distribution and reproduction in any medium or format, as long as you give appropriate credit to the author(s) and the source, provide a link to the creative commons license and indicate if changes were made, this license does not permit the Contribution to be used commercially. Contents Preface xiChapter 1 Notation and Conventions 1.1 PROBLEMS Chapter 2 Review of Perturbative Field Theory 2.1 CREATION AND ANNIHILATION OPERATORS 2.2 LAGRANGIAN FIELD THEORY 2.3 THE HERMITIAN SCALAR FIELD 2.3.1 The Lagrangian and Equations of Motion 2.3.2 The Free Hermitian Scalar Field 2.3.3 The Feynman Rules 2.3.4 Kinematics and the Mandelstam Variables 2.3.5 The Cross Section and Decay Rate Formulae 2.3.6 Loop Effects 2.4 THE COMPLEX SCALAR FIELD 2.4.1 U (1) Phase Symmetry and the Noether Theorem 2.5 ELECTROMAGNETIC AND VECTOR FIELDS 2.5.1 Massive Neutral Vector Field 2.6 ELECTROMAGNETIC INTERACTION OF CHARGED PIONS 2.7 THE DIRAC FIELD 2.7.1 The Free Dirac Field 2.7.2 Dirac Matrices and Spinors 2.8 QED FOR ELECTRONS AND POSITRONS 2.9 SPIN EFFECTS AND SPINOR CALCULATIONS 2.10 THE DISCRETE SYMMETRIES P , C, CP , T , AND CP T 2.11 TWO-COMPONENT NOTATION AND INDEPENDENT FIELDS 2.12 QUANTUM ELECTRODYNAMICS (QED) 2.12.1 Higher-Order Effects 2.12.2 The Running Coupling 2.12.3 Tests of QED 2.12.4 The Role of the Strong Interactions 2.13 OPERATOR DIMENSIONS AND CLASSIFICATION v vi Contents 2.14 MASS AND KINETIC MIXING 2.15 PROBLEMS Chapter 3 Lie Groups, Lie Algebras, and Symmetries 3.1 BASIC CONCEPTS 3.1.1 Groups and Representations 3.1.2 Examples of Lie Groups 3.1.3 More on Representations and Groups 3.2 GLOBAL SYMMETRIES IN FIELD THEORY 3.

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“…[85][86][87]). New generation experiments using these nuclides are expected to reach a sensitivity to sub-eV values of the effective electron neutrino mass.…”

Section: Jhep06(2016)061mentioning

confidence: 99%

Light sterile neutrino sensitivity of 163Ho experiments

Gastaldo

Giunti

Zavanin

2016

J. High Energ. Phys.

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Abstract:We explore the sensitivity of 163 Ho electron capture experiments to neutrino masses in the standard framework of three-neutrino mixing and in the framework of 3+1 neutrino mixing with a sterile neutrino which mixes with the three standard active neutrinos, as indicated by the anomalies found in short-baseline neutrino oscillations experiments. We calculate the sensitivity to neutrino masses and mixing for different values of the energy resolution of the detectors, of the unresolved pileup fraction and of the total statistics of events, considering the expected values of these parameters in the two planned stages of the ECHo project (ECHo-1k and ECHo-1M). We show that an extension of the ECHo-1M experiment with the possibility to collect 10 16 events will be competitive with the KATRIN experiment. This statistics will allow to explore part of the 3+1 mixing parameter space indicated by the global analysis of short-baseline neutrino oscillation experiments. In order to cover all the allowed region, a statistics of about 10 17 events will be needed.

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Constraints on the Active and Sterile Neutrino Masses from Beta-Ray Spectra: Past, Present and Future1

Cited by 12 publications

References 275 publications

Decaying sterile neutrinos and the short baseline oscillation anomalies

Decaying sterile neutrinos and the short baseline oscillation anomalies

The Standard Model and Beyond

Light sterile neutrino sensitivity of 163Ho experiments

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