{
  "id": "1504.02594",
  "version": "v1",
  "published": "2015-04-10T09:05:16.000Z",
  "updated": "2015-04-10T09:05:16.000Z",
  "title": "Proton and neutron correlations in $^{10}$B",
  "authors": [
    "Yoshiko Kanada-En'yo",
    "Hiroyuki Morita",
    "Fumiharu Kobayashi"
  ],
  "comment": "12 pages 9 figures",
  "categories": [
    "nucl-th"
  ],
  "abstract": "We investigate positive-parity states of $^{10}$B with the calculation of antisymmetrized molecular dynamics focusing on $pn$ pair correlations. We discuss effects of the spin-orbit interaction on energy spectra and $pn$ correlations of the $J^\\pi T=1^+_10$, $=3^+_10$, and $0^+_11$ states. The $1^+_10$ state has almost no energy gain of the spin-orbit interaction, whereas the $3^+_10$ state gains the spin-orbit interaction energy largely to come down to the ground state. We interpret a part of the two-body spin-orbit interaction in the adopted effective interactions as a contribution of the genuine $NNN$ force, and find it to be essential for the level ordering of the $3^+_10$ and $1^+_10$ states in $^{10}$B. We also apply a $2\\alpha+pn$ model to discuss effects of the spin-orbit interaction on $T=0$ and $T=1$ $pn$ pairs around the 2$\\alpha$ core. In the spin-aligned $J^\\pi T=3^+0$ state, the spin-orbit interaction affects the $(ST)=(10)$ pair attractively and keeps the pair close to the core, whereas, in the $1^+0$ state, it gives a minor effect to the $(ST)=(10)$ pair. In the $0^+1$ state, the $(ST)=(01)$ pair is somewhat dissociated by the spin-orbit interaction.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2015-04-10T09:05:16.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "21.10.-k",
      "21.30.Fe",
      "21.60.Gx",
      "27.20.+n"
    ],
    "keywords": [
      "neutron correlations",
      "two-body spin-orbit interaction",
      "spin-orbit interaction affects",
      "spin-orbit interaction energy",
      "minor effect"
    ],
    "publication": {
      "doi": "10.1103/PhysRevC.91.054323"
    },
    "note": {
      "typesetting": "TeX",
      "pages": 12,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 1358970
    }
  }
}