Novel neutron decay mode inside neutron stars

Abstract

We explore the suggestion that the neutron lifetime puzzle might be resolved by neutrons decaying into dark matter through the process, n \rightarrow χχχ, with χhaving a mass one third of that of the neutron. In particular, we examine the consequences of such a decay mode for the properties of neutron stars. Unlike an earlier suggested decay mode, in order to satisfy the constraints on neutron star mass and tidal deformability, there is no need for a strong repulsive force between the dark matter particles. This study suggests the possibility of having hot dark matter at the core of the neutron star and presents a possible mechanism of dark matter cooling, and examines the possible signal of neutrons decaying in this way inside the neutron star right after its birth.

5 figures

References in corpus (15)

• GW170817: Observation of Gravitational Waves from a Binary Neutron Star Inspiral
• Tidal Love numbers of neutron stars
• Compact Stars as Dark Matter Probes
• Cold uniform matter and neutron stars in the quark-mesons-coupling model
• Binding of Hypernuclei in the Latest Quark-Meson Coupling Model
• Gravitational Waves from Compact Dark Objects in Neutron Stars
• Neutron Stars with Baryon Number Violation, Probing Dark Sectors
• Dark Matter interpretation of the neutron decay anomaly
• Consequences of neutron decay inside neutron stars
• Neutron-star radii based on realistic nuclear interactions
• Hyperonic Neutron Star Matter in Light of GW170817
• The Role of Baryon Structure in Neutron Stars
• Tensor and pairing interactions within the QMC energy density functional
• Quark-quark interaction and quark matter in neutron stars
• Neutron Star Interiors and the Equation of State of Superdense Matter

Cited by in corpus (12)

• R-modes as a New Probe of Dark Matter in Neutron Stars
• Effects of Dark Matter on $f$-mode oscillations of Neutron Stars
• Searching for New Physics in Ultradense Environment: a Review on Dark Matter Admixed Neutron Stars
• Constraining the mass of fermionic dark matter from its feeble interaction with hadronic matter via dark mediators in neutron stars
• Neutron Dark Decay
• Probing fermionic asymmetric dark matter cores using global neutron star properties
• Effect of dark matter interaction on hybrid star in the light of the recent astrophysical observations
• Thermodynamic Consistent Description of Compact Stars of Two Interacting Fluids: The Case of Neutron Stars with Higgs Portal Dark Matter
• Impact of dark boson mediated feeble interaction between dark matter and hadronic matter on $f$-mode oscillation of neutron stars
• Effects of dark boson mediated feeble interaction between dark matter (DM) and quark matter on $f$-mode oscillation of DM admixed quark stars
• Neutron Decay Anomaly and Its Effects on Neutron Star Properties
• F-mode Oscillations of Neutron Stars with Dark Matter from Neutron Decay: Implications for Gravitational-Wave Detectability