SIMBAD references

If a light gluino exists, the lightest gluino-containing baryon, S⁰, is a possible candidate for self-interacting dark matter. In this scenario, the simplest explanation for the observed ratio Ω_DM/Ω_b~6-10 is that m_S0^_∼900 MeV.c^–2; at present, this is not excluded by particle physics. Such an S⁰ could be present in neutron stars, with the hyperon formation serving as an intermediate stage. We calculate equilibrium compositions and the equation of state for high-density matter with S⁰, and we find that for a wide range of parameters, the properties of neutron stars with S⁰ are consistent with observations. In particular, the maximum mass of a nonrotating star is 1.7-1.8 M_☉, and the presence of S⁰ is helpful in reconciling observed cooling rates with hyperon formation.