A Dark Seesaw Solution to Low Energy Anomalies: MiniBooNE, the muon $(g-2)$, and BaBar

Abstract

A recent update from MiniBooNE has strengthened the observed $4.8\sigma$ excess of $e$-like events. Motivated by this and other notable deviations from standard model predictions, such as the muon $(g-2)$, we propose a solution to low energy anomalies through a dark neutrino sector. The model is renormalizable and can also explain light neutrino masses with an anomaly-free and dark $U(1{)}^{\prime }$ gauge symmetry broken at the GeV scale. Large kinetic mixing leads to s-channel production of heavy neutral leptons at $e^{+}{e}^{-}$ colliders, where we point out and explain a $\gtrsim 2\sigma$ excess observed in the BaBar monophoton data. Our model is also compatible with anomalous $e$-like events seen at old accelerator experiments, as well as with an excess of double vertex signatures observed at CCFR.

v2: Discussion extended, KOTO explanation removed and benchmark points updated. Otherwise, conclusions unchanged. 18 pages, 2 figures, 5 tables. v3: Typos fixed. Accepted for publication in Physics Letters B

References in corpus (35)

• Secluded WIMP Dark Matter
• Leptogenesis
• Secluded U(1) below the weak scale
• Search for a dark photon in e+e- collisions at BABAR
• Illuminating Dark Photons with High-Energy Colliders
• The Dark Photon
• Non-Abelian Dark Sectors and Their Collider Signatures
• Probing a Secluded U(1) at B-factories
• Search for $A^{\prime }\to {\mu }^{+}{\mu }^{-}$ decays
• Probing Dark Forces and Light Hidden Sectors at Low-Energy e+e- Colliders
• Hadronic vacuum polarization: $(g-2{)}_{\mu }$ versus global electroweak fits
• Updated MiniBooNE Neutrino Oscillation Results with Increased Data and New Background Studies
• Light Sterile Neutrinos: Models and Phenomenology
• Constraints on sub-GeV hidden sector gauge bosons from a search for heavy neutrino decays
• Neutrinophilic Non-Standard Interactions
• Resolution of puzzles from the LSND, KARMEN, and MiniBooNE experiments
• Search for heavy neutrinos in $K^{+}\to {\mu }^{+}{\nu }_H$ decays
• An eV-scale sterile neutrino search using eight years of atmospheric muon neutrino data from the IceCube Neutrino Observatory
• Search for heavy neutral lepton production in $K^{+}$ decays
• Search for heavy neutral lepton production in $K^{+}$ decays to positrons
• Revisiting the Dark Photon Explanation of the Muon Anomalous Magnetic Moment
• Search for Production of Invisible Final States in Single-Photon Decays of Upsilon(1S)
• The Hubble tension and a renormalizable model of gauged neutrino self-interactions
• Search for production of an invisible dark photon in ${\pi }^0$ decays
• Searching for eV-scale sterile neutrinos with eight years of atmospheric neutrinos at the IceCube neutrino telescope
• Improved Constraints on Sterile Neutrino Mixing from Disappearance Searches in the MINOS, MINOS+, Daya Bay, and Bugey-3 Experiments
• Loophole in K --> pi nu nubar Search and New Weak Leptonic Forces
• Search for the Invisible Decay of $\jpsi$ in $\psi (2S)\to \pi +{\pi }^{-}J/\psi$
• Neutrino Masses from a Dark Neutrino Sector below the Electroweak Scale
• Dark sector origin of the KOTO and MiniBooNE anomalies
• Breaking up the Proton: An Affair with Dark Forces
• Search for dark sector physics with NA64
• Light Dark Sectors through the Fermion Portal
• Model Independent Bounds on the Non-Oscillatory Explanations of the MiniBooNE Excess
• Limits on contact interactions and leptoquarks at HERA

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