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Super heavy dark matter origin of the PeV neutrino event: KM3-230213A
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abstract
The recent observation of the ultrahigh-energy neutrino event KM3-230213A by the KM3NeT experiment offers a compelling avenue to explore physics beyond the Standard Model (SM). In this paper, we explore a simplest possibility that this event originates from the decay of a super-heavy dark matter (SHDM). We consider a minimal scenario where the SHDM decays to neutrino and SM Higgs. We derive constraints on the DM lifetime as a function of DM mass, ensuring consistency with IceCube, Auger upper limits, and the observed KM3-230213A event, along with the gamma-ray constraints. We find that KM3-230213A gives stringent constraint on the DM mass ranging from $1.5\times10^8$ GeV to $5.2\times10^9$ GeV with lifetime in the range: $1.42\times10^{30}$ s to $5.4\times10^{29}$ s. Remarkably, in our SHDM scenario, the apparent tension between the KM3NeT observation and the nonobservation of this event by IceCube and Auger can be reduced to below $1.2\sigma$. Our results are applicable to any neutrinophilic SHDM models while evading gamma-ray constraints.
Forward citations
Cited by 12 Pith papers
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The KM3NeT 220 PeV event: a neutrino messenger from the grand unification scale?
The KM3NeT 220 PeV event is read as X o u ū decay of a flavored onium relic at m_X=4.4e8 GeV, with lifetime fixing a mediator near 10^16 GeV under a single Higgs insertion.
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Earth rotation turns event timing into a geometric probe of UHE neutrino origin
Earth-rotation timing lowers the number of future KM3NeT events needed to exclude a dark-matter origin of KM3-230213A from ~22–27 to ~14–16.
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The soft volume of ultra-high energy neutrinos experiments
A drift-diffusion approximation of muon energy loss maps ultra-high-energy neutrino fluxes to through-going track rates, with a soft volume several times the instrumented volume.
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Interpreting the Hubble tension with a cascade decaying dark matter sector
A cascade decaying dark matter model combining early and late effects still cannot reduce the Hubble tension below about 3 sigma, and is statistically disfavored relative to Lambda CDM.
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The Highest-Energy Neutrino Event Constrains Dark Matter-Neutrino Interactions
KM3-230213A limits dark matter-neutrino scattering to below about 1e-22 cm^2/GeV at 220 PeV, but most simple dark matter models are excluded by unitarity above MeV masses.
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`Dark' Matter Effect as a Novel Solution to the KM3-230213A Puzzle
Dark matter scattering in the Earth, sourced by a flaring blazar, can explain the KM3-230213A event while yielding few or no IceCube events in a viable parameter space.
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Astrophysical flux of dark particles as a solution to the KM3NeT and IceCube tension over KM3-230213A
A transient astrophysical dark-particle flux can explain the KM3NeT 70 PeV muon via in-Earth upscattering and decay to muon pairs, while predicting no IceCube counterpart.
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Breaking Dark: Hunting Heavy Decaying Dark Matter with Tibet AS$_\gamma$ and LHAASO-KM2A
Tibet ASγ and LHAASO-KM2A diffuse gamma-ray data exclude decaying dark matter lifetimes below about 10^28 seconds for masses around 10^6-10^9 GeV, for many Standard Model final states.
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Exploring ultra-high energy neutrino experiments through the lens of the transport equation
Using a line-of-sight transport formalism, the paper finds a 3.1 sigma tension between the KM3NeT ultra-high-energy event and IceCube non-observation under a diffuse power-law flux, with stronger tension for steady po...
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Revisiting the limits on dark matter annihilation cross-section and decay lifetime in light of electron and positron fluxes
Using CALET, AMS-02, DAMPE, HESS, HAWC, GRAPES-3 and CASA-MIA data, this paper derives 95% C.L. constraints on dark matter annihilation and decay up to 10^16 GeV.
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Interpreting the KM3-230213A PeV Neutrino Event via Vector Dark Matter Decay and Its Multi-Messenger Signatures
A U(1)_X vector dark matter model explains the KM3-230213A PeV neutrino via DM decay and predicts a cosmic string gravitational wave background consistent with PTA observations, but with several parameters fitted to the data.
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Road through Dark$\nu$ess: Probing dark matter-neutrino interactions using KM3-230213A
Using the 220 PeV event KM3-230213A, the authors set the highest-energy constraints to date on dark matter-neutrino scattering, and for energy-dependent cross sections they report some of the strongest existing limits.
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