Neutron Star Matter EOS in RMF with Multi-Body Couplings

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Abstract

We investigate the multi-body coupling effects on the neutron star matter equation of state (EOS). By tuning the multi-body coupling constants in the relativistic mean field (RMF) models, microscopic EOSs are well fitted, and smaller neutron star radii R ∼ 12 km are obtained. When the repulsive potential for Λ at high density is assumed to have density dependence similar to that for nucleons, it is possible to support 2M☉ neutron stars by hyperonic EOSs, which do not contradict hypernuclear data.

The 14th International Symposium on Nuclei in the Cosmos (NIC2016), June 19-24, 2016, Niigata, Japan.

Journal

  • Proceedings of the 14th International Symposium on Nuclei in the Cosmos (NIC2016)

    Proceedings of the 14th International Symposium on Nuclei in the Cosmos (NIC2016), 2017

    The Physical Society of Japan

Codes

  • NII Article ID (NAID)
    120006654214
  • Text Lang
    ENG
  • Article Type
    conference paper
  • Data Source
    IR 
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