Sterile neutrinos and right-handed currents in KATRIN

Abstract

Kurie-plot experiments allow for neutrino-mass measurements based on kinematics in an almost model-independent manner. A future tritium-based KATRIN-like experiment can be sensitive to light sterile neutrinos with masses below 18 keV, which are among the prime candidates for warm dark matter. Here we consider such keV neutrinos in left--right symmetric extensions, i.e. coupled to right-handed currents, which allow for an enhanced contribution to beta decay even for small active--sterile mixing, without violating astrophysical X-ray constraints. The modified spectral shape is in principle distinguishable from the standard contribution---especially for sterile neutrino masses below 9 keV, which can lead to a distinct peak. We compare the sensitivity to constraints from the LHC and neutrinoless double beta decay.

arXiv comment21 pages, 10 figures; minor changes, added references. Matches published version

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Cited by in corpus (30)

• Sterile Neutrino Dark Matter
• A White Paper on keV Sterile Neutrino Dark Matter
• Sterile Neutrinos
• Checking the dark matter origin of 3.53 keV line with the Milky Way center
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• Sensitivity of Next-Generation Tritium Beta-Decay Experiments for keV-Scale Sterile Neutrinos
• Proton-proton fusion and tritium $\beta$-decay from lattice quantum chromodynamics
• Minimal Left-Right Symmetric Dark Matter
• Nuclear matrix elements from lattice QCD for electroweak and beyond-Standard-Model processes
• Diluted equilibrium sterile neutrino dark matter
• Light Sterile Neutrinos: Status and Perspectives
• Sterile neutrino Dark Matter production from scalar decay in a thermal bath
• Beta and Neutrinoless Double Beta Decays with KeV Sterile Fermions
• Direct Neutrino Mass Experiments and Exotic Charged Current Interactions
• 7 keV Sterile neutrino dark matter in $U(1{)}_R-$ lepton number model
• Prospects for Finding Sterile Neutrino Dark Matter at KATRIN
• Tritium beta decay with additional emission of new light bosons
• Singlet fermion Dark Matter within Left-Right Model
• Flavor changing in the flipped trinification
• Interference Effects for $0\nu \beta \beta$ Decay in the Left-Right Symmetric Model
• Investigation of Dark Matter in the 3-2-3-1 Model
• Constraints on the Active and Sterile Neutrino Masses from Beta-Ray Spectra: Past, Present and Future
• Phenomenology of $keV$ sterile neutrino in minimal extended seesaw
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• Leptogenesis with TeV Scale $W_R$
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• First constraints on general neutrino interactions based on KATRIN data
• Theoretical and phenomenological consequences of active and sterile neutrino within Beyond Standard Model framework
• Sterile neutrino dark matter production in presence of non-standard neutrino self-interactions: an EFT approach