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Improved Constraints on Sterile Neutrinos in the MeV to GeV Mass Range

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arxiv 1904.06787 v1 pith:HE4ANIAK submitted 2019-04-15 hep-ph hep-exnucl-th

D. A. Bryman , R. Shrock This is my paper · ORCID
classification hep-phhep-exnucl-th
keywords decaysimprovedmassnuclearrangesterileanalysesbeta
verification ladder T0 review T1 audit T2 compute T3 formal
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abstract

Improved upper bounds are presented on the coupling $|U_{e4}|^2$ of an electron to a sterile neutrino $\nu_4$ from analyses of data on nuclear and particle decays, including superallowed nuclear beta decays, the ratios $R^{(\pi)}_{e/\mu}=BR(\pi^+ \to e^+ \nu_e)/BR(\pi^+ \to \mu^+ \nu_\mu)$, $R^{(K)}_{e/\mu}$, $R^{(D_s)}_{e/\tau}$, and $B^+_{e 2}$ decay, covering the mass range from MeV to GeV.

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Forward citations

Cited by 4 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Probing Neutrinophilic Long-Range Forces at DUNE

    hep-ph 2026-07 conditional novelty 6.0 of 10

    DUNE's long baseline can exclude previously unexplored regions of neutrinophilic long-range force parameter space and map them onto cosmologically relevant neutrino self-interaction strengths.

  2. Constraints and Sensitivities for Dipole-Portal Heavy Neutral Leptons from ND280 and its Upgrade

    hep-ph 2024-12 conditional novelty 6.0 of 10

    ND280 data, recast through a detailed Monte Carlo simulation, set new world-leading limits on dipole-portal heavy neutral leptons and disfavor them as the MiniBooNE anomaly explanation.

  3. Probing Solar Heavy Neutrinos with Heliospheric Electrons

    astro-ph.HE 2024-12 conditional novelty 6.0 of 10

    Using Ulysses and SOHO MeV electron data, the authors set the strongest direct upper bound U_e^2 ~ 10^-6 on solar-produced heavy neutral leptons, reaching that value at a mass near 10 MeV.

  4. Searching for long-lived particles from stopped pions and muons at the CiADS-BDE

    hep-ph 2025-01 conditional novelty 4.0 of 10

    Projected 5-year sensitivity of the proposed CiADS-BDE shows reach beyond current bounds for HNLs, electrophilic and LFV ALPs, and RPV light binos.

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