Neutrino mass constraints on beta decay

Abstract

Using the general connection between the upper limit on the neutrino mass and the upper limits on certain types of non-Standard Model interaction that can generate loop corrections to the neutrino mass, we derive constraints on some non-Standard Model $d\to u{e}^{-}\bar{\nu }$ interactions. When cast into limits on $n\to p{e}^{-}\bar{\nu }$ coupling constants, our results yield constraints on scalar and tensor weak interactions improved by more than an order of magnitude over the current experimental limits. When combined with the existing limits, our results yield $|C_S/C_V|\alt 5\times 10^{-3}$, $|C'_S/C_V|\alt 5\times 10^{-3}$, $|C_T/C_A| \alt 1.2\times 10^{-2}$ and $|C'_T/C_A| \alt 1.2\times 10^{-2}$.

4 pages, 3 figures; revised to reflect referee comments; accepted for publication in Physical Review Letters

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• Scalar and tensor neutrino interactions
• Supersymmetric Contributions to Weak Decay Correlation Coefficients
• Tensor interaction constraints from beta decay recoil spin asymmetry of trapped atoms
• Limits on tensor type weak currents from nuclear and neutron $\beta$~decays
• First direct constraints on Fierz interference in free neutron $\beta$ decay
• Neutrinos in flat extra dimension: towards a realistic scenario
• Neutrino Mass Implications for Muon Decay Parameters
• Right-handed Dirac and Majorana neutrinos at Belle II
• Tensor interaction in coherent elastic neutrino-nucleus scattering
• Probing neutrino-night-quark effective scalar interactions from neutrino masses