Asymmetric cannibal dark matter with Z3-symmetric 3→2 interactions depletes in neutron star cores, producing observable heating signatures that constrain dark matter parameters beyond standard annihilation models.
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Steep matter-density gradients in neutron stars can produce neutrino-antineutrino pairs analogous to the Schwinger effect.
Observation of neutron stars at 1000-1200 K could constrain asymmetric dark matter self-interaction cross-sections by two orders of magnitude beyond bullet cluster limits.
citing papers explorer
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Asymmetric Cannibal Dark Matter: Constraints from Neutron Star
Asymmetric cannibal dark matter with Z3-symmetric 3→2 interactions depletes in neutron star cores, producing observable heating signatures that constrain dark matter parameters beyond standard annihilation models.
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Gradient-Produced Neutrinos
Steep matter-density gradients in neutron stars can produce neutrino-antineutrino pairs analogous to the Schwinger effect.
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Constraining dark matter self-interaction from kinetic heating in neutron stars
Observation of neutron stars at 1000-1200 K could constrain asymmetric dark matter self-interaction cross-sections by two orders of magnitude beyond bullet cluster limits.