{
  "id": "2308.08001",
  "version": "v1",
  "published": "2023-08-15T19:27:59.000Z",
  "updated": "2023-08-15T19:27:59.000Z",
  "title": "Constraints on the Nuclear Symmetry Energy from Experiments, Theory and Observations",
  "authors": [
    "James M. Lattimer"
  ],
  "comment": "Compact Stars in the QCD Phase Diagram (CSQCD) IX, Banff, Canada, 2022. arXiv admin note: substantial text overlap with arXiv:2301.03666",
  "journal": "Journal of Physics: Conference Series, Volume 2536, Issue 1, id.012009, 10 pp. (2023)",
  "doi": "10.1088/1742-6596/2536/1/012009",
  "categories": [
    "nucl-th",
    "astro-ph.HE",
    "nucl-ex"
  ],
  "abstract": "Nuclear mass measurements and neutron matter theory tightly constrain the nuclear symmetry energy parameters $J$, $L$, $K_{sym}$ and $Q_{sym}$. Corroboration of these constraints on $J$ and $L$ can be found from measurements of the neutron skin thicknesses and dipole polarizabilities of neutron-rich nuclei. The experimental constraints on these parameters are compared with those obtained from consideration of astrophysical measurements of the neutron star radius, which we show is highly correlated with $L$. Attention is aimed at the recent PREX and CREX neutron skin measurements from Jefferson Lab, NICER neutron star radius measurements, and a new interpretation of the GW170817 tidal deformability measurement. We find joint satisfaction of PREX and CREX gives $J=32.2\\pm1.7$ MeV and $L=52.9\\pm13.2$ MeV, in excellent agreement with neutron matter predictions of $J=32.0\\pm1.1$ MeV and $L=51.9\\pm7.9$ MeV.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2023-08-15T19:27:59.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "constraints",
      "nicer neutron star radius measurements",
      "gw170817 tidal deformability measurement",
      "neutron matter theory tightly constrain",
      "nuclear symmetry energy parameters"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "IOP"
    },
    "note": {
      "typesetting": "TeX",
      "pages": 0,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}