First constraints on general neutrino interactions based on KATRIN data

Abstract

The precision measurement of the tritium $\beta$-decay spectrum performed by the KATRIN experiment provides a unique way to search for general neutrino interactions (GNI). All theoretical allowed GNI terms involving neutrinos are incorporated into a low-energy effective field theory, and can be identified by specific signatures in the measured tritium $\beta$-spectrum. In this paper an effective description of the impact of GNI on the $\beta$-spectrum is formulated and the first constraints on the effective GNI parameters are derived based on the 4 million electrons collected in the second measurement campaign of KATRIN in 2019. In addition, constraints on selected types of interactions are investigated, thereby exploring the potential of KATRIN to search for more specific new physics cases, including a right-handed W boson, a charged Higgs or leptoquarks.

References in corpus (35)

• Asymptotic formulae for likelihood-based tests of new physics
• An improved upper limit on the neutrino mass from a direct kinematic method by KATRIN
• Status of non-standard neutrino interactions
• New physics searches in nuclear and neutron $\beta$ decay
• Beta Decays and Non-Standard Interactions in the LHC Era
• Coherent Neutrino-Nucleus Scattering and new Neutrino Interactions
• COHERENT analysis of neutrino generalized interactions
• Axial, Scalar and Tensor Charges of the Nucleon from 2+1+1-flavor Lattice QCD
• Neutrino Non-Standard Interactions: A Status Report
• General Neutrino Interactions from an Effective Field Theory Perspective
• COHERENT constraints to conventional and exotic neutrino physics
• Non-standard Charged Current Interactions: beta decays versus the LHC
• Direct neutrino-mass measurement based on 259 days of KATRIN data
• Isospin breaking in the nucleon mass and the sensitivity of beta decays to new physics
• The Design, Construction, and Commissioning of the KATRIN Experiment
• General neutrino interactions with sterile neutrinos in light of coherent neutrino-nucleus scattering and meson invisible decays
• Distinguishing between Dirac and Majorana neutrinos in the presence of general interactions
• Scalar and tensor neutrino interactions
• General Neutrino Interactions at the DUNE Near Detector
• Effective Theory and Simple Completions for Neutrino Interactions
• Sterile neutrinos and right-handed currents in KATRIN
• Improved eV-scale Sterile-Neutrino Constraints from the Second KATRIN Measurement Campaign
• $\beta$-Decay Spectrum, Response Function and Statistical Model for Neutrino Mass Measurements with the KATRIN Experiment
• Borexino and General Neutrino Interactions
• A Direct Detection View of the Neutrino NSI Landscape
• Direct Neutrino Mass Experiments and Exotic Charged Current Interactions
• Exact relativistic tritium beta-decay endpoint spectrum in a hadron model
• Constraints on general neutrino interactions with exotic fermion from neutrino-electron scattering experiments
• The KATRIN sensitivity to the neutrino mass and to right-handed currents in beta decay
• Minimal Radiative Neutrino Masses
• Development of a Silicon Drift Detector Array to Search for keV-scale Sterile Neutrinos with the KATRIN Experiment
• Statistical sensitivity on right-handed currents in presence of eV scale sterile neutrinos with KATRIN
• PTOLEMY's test of generalized neutrino interactions: unveiling challenges and constraints
• A method for determining the transition energies of ${}^{83m}$Kr at the KATRIN experiment
• Restricting Sterile Neutrinos by Neutrinoless Double Beta Decay

Cited by in corpus (1)

• Tensor interaction in coherent elastic neutrino-nucleus scattering