Implications of Neutron Star Properties for the Existence of Light Dark Matter

Abstract

It was recently suggested that the discrepancy between two methods of measuring the lifetime of the neutron may be a result of an unseen decay mode into a dark matter particle which is almost degenerate with the neutron. We explore the consequences of this for the properties of neutron stars, finding that their known properties are in conflict with the existence of such a particle.

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• Neutron's Dark Secret
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• Baryogenesis from neutron-dark matter oscillations
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• Novel neutron decay mode inside neutron stars
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• Fermion Proca Stars: Vector Dark Matter Admixed Neutron Stars
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• Neutron Dark Decay
• New search for mirror neutron regeneration
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• Charged neutron stars and observational tests of a dark force weaker than gravity
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• Annihilation signatures of neutron dark decay models in neutron oscillation and proton decay searches
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• How Macroscopic Limits on Neutron Star Baryon Loss Yield Microscopic Limits on Non-Standard-Model Baryon Decay
• Probing Dark Sectors with Neutron Stars
• Neutron star structure with a new force between quarks
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• $g$-mode oscillations of dark matter admixed neutron stars
• Neutron Dark Matter Decays
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• Shedding Light on Dark Sectors with Gravitational Waves
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• The Strange Physics of Dark Baryons