{
  "id": "2407.18793",
  "version": "v1",
  "published": "2024-07-26T14:54:38.000Z",
  "updated": "2024-07-26T14:54:38.000Z",
  "title": "Investigating the effect of nuclear deformation on $β$-decay half-lives of neutron-rich nuclei",
  "authors": [
    "Jameel-Un Nabi",
    "Tuncay Bayram",
    "Wajeeha Khalid",
    "Arslan Mehmood",
    "Alper Köseoğlu"
  ],
  "comment": "Total Pages = 37, Tables 3, Figures 17",
  "categories": [
    "nucl-th",
    "astro-ph.SR"
  ],
  "abstract": "We examine the effect of nuclear deformation on the calculated $\\beta$-decay half-lives of 55 neutron-rich nuclei. The deformation values were computed using DD-PC1 and DD-ME2 interactions in the Relativistic Hartree-Bogoliubov model. Yet another set of deformation was adopted from the Finite Range Droplet Model (FRDM). The model-dependent deformation values were used as a free parameter in the proton-neutron quasiparticle random phase approximation model to calculate the $\\beta$-decay properties under terrestrial and stellar conditions. The Gamow-Teller strength distributions, branching ratios, half-lives and stellar weak rates of selected nuclei were later investigated. It was concluded that the $\\beta$-decay properties of neutron-rich nuclei changed with nuclear deformation. The FRDM computed deformation values provided the best predictions for calculated half-lives followed by the DD-ME2 functional. The terrestrial $\\beta$-decay half-lives changed up to 3 orders of magnitude and the stellar $\\beta$-rates within a factor of 2 as the neutron-rich nuclei switched their geometrical configurations. For magic number nucleus $^{138}$Sn, the stellar rates changed substantially by more than 1 order of magnitude as the nucleus transitioned away from the spherical shape. Our investigation might prove useful for a realistic modeling of nucleosynthesis calculation.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2024-07-26T14:54:38.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "neutron-rich nuclei",
      "decay half-lives",
      "nuclear deformation",
      "deformation values",
      "quasiparticle random phase approximation model"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 0,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}