{
  "id": "1509.04861",
  "version": "v1",
  "published": "2015-09-16T09:36:53.000Z",
  "updated": "2015-09-16T09:36:53.000Z",
  "title": "Effect of Delta potential on the pion-/pion+ ratio in heavy-ion collisions at intermediate energies",
  "authors": [
    "Wen-Mei Guo",
    "Gao-Chan Yong",
    "Wei Zuo"
  ],
  "comment": "5 pages, 9 figures",
  "categories": [
    "nucl-th",
    "nucl-ex"
  ],
  "abstract": "Based on the isospin-dependent Boltzmann-Uehling-Uhlenbeck(IBUU) transport model, effects of $\\Delta$ resonance potential on the $\\pi^-/\\pi^+$ ratio in the central collision of $^{197}Au+^{197}Au$ at beam energies of 200 and 400 MeV/A are studied. It is found that the effect of $\\Delta$ potential on the ratio of pre-equilibrium free $n/p$ is negligible. The effect of $\\Delta$ potential on the ratio of $\\pi^-/\\pi^+$ may be observable (roughly 5\\%) only at lower incident beam energies and with stiffer symmetry energy. In heavy-ion collisions at intermediate energies, relating to the question of non-conservation of energy on $\\Delta$ or $\\pi$ productions, one can replace the $\\Delta$ potential by the nucleon isoscalar potential especially a soft symmetry energy is employed.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2015-09-16T09:36:53.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "25.70.-z",
      "21.65.Ef"
    ],
    "keywords": [
      "intermediate energies",
      "heavy-ion collisions",
      "delta potential",
      "lower incident beam energies",
      "soft symmetry energy"
    ],
    "publication": {
      "doi": "10.1103/PhysRevC.92.054619"
    },
    "note": {
      "typesetting": "TeX",
      "pages": 5,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 1393697
    }
  }
}