Do Delta baryons play a role in neutron stars?
Theo F. Motta, A. W. Thomas, P.A.M. Guichon
Abstract
The presence of exotic hadrons, such as hyperons and Δ isobars, in the dense nuclear matter in their cores has been shown to produce important changes in the properties of neutron stars. Within the quark-meson coupling model, we show that the many-body forces generated by the change in the internal quark structure of the baryons in the strong scalar mean fields generated in dense nuclear matter prohibit the appearance of Δ isobars.
Topics & Concepts
PhysicsBaryonIsobarParticle physicsNuclear physicsHyperonNeutron starHadronNuclear matterNeutronScalar (mathematics)QuarkStrange matterMesonStarsQuark starNucleonAstrophysicsGeometryMathematicsPulsars and Gravitational Waves ResearchHigh-pressure geophysics and materialsGamma-ray bursts and supernovae