Majorana neutrinos convert to antineutrinos in ultralight vector dark matter backgrounds coupled to lepton number, enabling supernova neutrino detectors to probe gauge couplings as small as 10^{-32} for masses around 10^{-22} to 10^{-14} eV.
Discovering leptonic forces using non- conserved currents
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No evidence for long-range neutrino interactions from a broad class of anomaly-free U(1)' symmetries is found in 8 years of IceCube DeepCore atmospheric data, producing stringent constraints on the corresponding LRI potentials and mediator parameters.
For Lμ-Lτ gauge forces with g ≳ 10^{-18}, Schwinger neutrino production in neutron stars alters composition, invalidates merger constraints at g ≳ 10^{-17}, and could yield detectable ~100 MeV neutrino fluxes from young stars at ~100 pc.
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Neutrino-Antineutrino Conversion from Ultralight Vector Dark Matter
Majorana neutrinos convert to antineutrinos in ultralight vector dark matter backgrounds coupled to lepton number, enabling supernova neutrino detectors to probe gauge couplings as small as 10^{-32} for masses around 10^{-22} to 10^{-14} eV.
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Constraints on long-range neutrino interactions from a variety of $U(1)^\prime$ symmetries using atmospheric neutrinos at IceCube DeepCore
No evidence for long-range neutrino interactions from a broad class of anomaly-free U(1)' symmetries is found in 8 years of IceCube DeepCore atmospheric data, producing stringent constraints on the corresponding LRI potentials and mediator parameters.
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New Gauge Forces, Neutron Stars and Schwinger Neutrino Production
For Lμ-Lτ gauge forces with g ≳ 10^{-18}, Schwinger neutrino production in neutron stars alters composition, invalidates merger constraints at g ≳ 10^{-17}, and could yield detectable ~100 MeV neutrino fluxes from young stars at ~100 pc.