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Neutron Star Stability in Light of the Neutron Decay Anomaly

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arxiv 1811.06546 v1 pith:6MFDBNXX submitted 2018-11-15 hep-ph astro-ph.CO

classification hep-phastro-ph.CO
keywords darkneutrondecaymatterneutronsstarsmassmasses
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A recent proposal suggests that experimental discrepancies on the lifetime of neutrons can be resolved if neutrons decay to dark matter. At the same time it has been demonstrated that such a decay mode would soften the nuclear equation of state resulting in neutron stars with a maximum mass much below currently observed ones. In this paper we demonstrate that appropriate dark matter-baryon interactions can accommodate neutron stars with mass above 2 solar masses. We also show that dark matter self-interactions could also help neutrons stars reach 2 solar masses provided that dark matter is of asymmetric nature.

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  1. Scalar baryons in neutron stars

    hep-ph 2026-08 conditional novelty 6.0 of 10

    Scalar baryons made inside neutron stars require non-perturbatively large repulsive self-couplings, lambda_4 greater than 1000, to permit two-solar-mass stars, and attractive self-interactions make even scalars heavie...

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