Direct Neutrino Mass Experiments and Exotic Charged Current Interactions

Abstract

We study the effect of exotic charged current interactions on the electron energy spectrum in tritium decay, focussing on the KATRIN experiment and a possible modified setup that has access to the full spectrum. Both sub-eV and keV neutrino masses are considered. We perform a fully relativistic calculation and take all possible new interactions into account, demonstrating the possible sizable distortions in the energy spectrum.

38 pages, 6 figures, no diphotons. Comments and references added

References in corpus (5)

• Updated fit to three neutrino mixing: status of leptonic CP violation
• Tests of the standard electroweak model in beta decay
• Sensitivity of Next-Generation Tritium Beta-Decay Experiments for keV-Scale Sterile Neutrinos
• Signatures of Extra Dimensional Sterile Neutrinos
• Sterile neutrinos and right-handed currents in KATRIN

Cited by in corpus (22)

• Sterile Neutrino Dark Matter
• New physics searches in nuclear and neutron $\beta$ decay
• Proton-proton fusion and tritium $\beta$-decay from lattice quantum chromodynamics
• Direct Measurements of Neutrino Mass
• Nuclear matrix elements from lattice QCD for electroweak and beyond-Standard-Model processes
• Reactor neutrino oscillations as constraints on Effective Field Theory
• KATRIN: Status and Prospects for the Neutrino Mass and Beyond
• Beta and Neutrinoless Double Beta Decays with KeV Sterile Fermions
• Prospects for Finding Sterile Neutrino Dark Matter at KATRIN
• Tritium beta decay with additional emission of new light bosons
• KATRIN bound on 3+1 active-sterile neutrino mixing and the reactor antineutrino anomaly
• Beta spectrum of unique first-forbidden decays as a novel test for fundamental symmetries
• Effective neutrino masses in KATRIN and future tritium beta-decay experiments
• Probing nonstandard lepton number violating interactions in neutrino oscillations
• Sterile neutrinos with non-standard interactions in $\beta$- and $0\nu \beta \beta$-decay experiments
• Impact of Beyond the Standard Model Physics in the Detection of the Cosmic Neutrino Background
• Phenomenology of $keV$ sterile neutrino in minimal extended seesaw
• Shake-off in the 164Er neutrinoless double electronic capture and the dark matter puzzle
• Sensitivity of Future Tritium Decay Experiments to New Physics
• PTOLEMY's test of generalized neutrino interactions: unveiling challenges and constraints
• First constraints on general neutrino interactions based on KATRIN data
• A study of the relativistic corrections to polarized tritium $\beta$-decay