Dirac right-handed neutrinos in a U(1)_{B-L} Z' portal model produce observable ΔN_eff that, together with direct/indirect detection and collider bounds, carves out testable WIMP and FIMP dark-matter regions.
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Models scalar-mediated νSI on the DSNB in a full three-flavor PMNS framework for four coupling structures and projects 3σ sensitivities at JUNO, Hyper-Kamiokande-Gd, and DUNE reaching g∼10^{-8} for m_ϕ∼100-300 eV.
citing papers explorer
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$Z^\prime$ Portal Dark Matter with Observable $\Delta N_{\rm eff}$
Dirac right-handed neutrinos in a U(1)_{B-L} Z' portal model produce observable ΔN_eff that, together with direct/indirect detection and collider bounds, carves out testable WIMP and FIMP dark-matter regions.
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Diffuse Supernova Neutrinos with Secret Neutrino Interactions
Models scalar-mediated νSI on the DSNB in a full three-flavor PMNS framework for four coupling structures and projects 3σ sensitivities at JUNO, Hyper-Kamiokande-Gd, and DUNE reaching g∼10^{-8} for m_ϕ∼100-300 eV.