Future global 21-cm observations could beat CMB limits on TeV-scale decaying dark matter for lifetimes ≳10^15 s, especially for decays into neutrinos.
05 033, [arXiv:2112.09137]
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Gamma-ray upper limits from five high-energy observatories constrain the annihilation cross sections of composite dark matter in the mass range 10^5--10^12 GeV.
The KM3NeT neutrino event may be a primordial neutrino from relic particle decay or annihilation near recombination, yielding a narrow spectral peak that evades broad power-law constraints from other telescopes.
Joint analysis of neutrino detectors and CMB observables can constrain dark matter annihilation into neutrinos for MeV-GeV masses.
citing papers explorer
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Cosmological constraints on TeV-scale dark matter subcomponents decaying between recombination and reionisation
Future global 21-cm observations could beat CMB limits on TeV-scale decaying dark matter for lifetimes ≳10^15 s, especially for decays into neutrinos.
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Too Heavy to Hide: Gamma-Ray Constraints on Annihilating Dark Matter beyond Unitarity
Gamma-ray upper limits from five high-energy observatories constrain the annihilation cross sections of composite dark matter in the mass range 10^5--10^12 GeV.
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The KM3NeT event: a primordial high energy neutrino?
The KM3NeT neutrino event may be a primordial neutrino from relic particle decay or annihilation near recombination, yielding a narrow spectral peak that evades broad power-law constraints from other telescopes.
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Joint probes of dark matter annihilation from neutrino detectors and CMB targets
Joint analysis of neutrino detectors and CMB observables can constrain dark matter annihilation into neutrinos for MeV-GeV masses.