{
  "annotation_id": "f84283f0-135c-4238-8692-4e166e2cf51b",
  "date_created": "2026-03-02T18:00:11.710000Z",
  "date_modified": "2026-03-02T18:00:11.710000Z",
  "file_hash": "c4dce5f79e9a663aa91c20f22a3b142af93ded8bd3c8a5c148490c59adfdb5f3",
  "private": false,
  "record": {
    "abstract": "The two-neutrino double beta decay matrix elements and half-lives of\n$^{48}$Ca, are calculated within a shell-model approach for transitions to the\nground state and to the $2^+$ first excited state of $^{48}$Ti. We use the full\n$pf$ model space and the GXPF1A interaction, which was recently proposed to\ndescribe the spectroscopic properties of the nuclei in the nuclear mass region\nA=47-66. Our results are $T_{1/2}(0^{+}\\to 0^{+})$ = $3.3\\times 10^{19}$ $yr$\nand $T_{1/2}(0^{+}\\to 2^{+})$ = $8.5\\times 10^{23}$ $yr$. The result for the\ndecay to the $^{48}$Ti 0$^+$ ground state is in good agreement with experiment.\nThe half-life for the decay to the 2$^+$ state is two orders of magnitude\nlarger than obtained previously.",
    "arxiv_id": "nucl-th/0701076",
    "authors": [
      "M. Horoi",
      "S. Stoica",
      "B. A. Brown"
    ],
    "categories": [
      "nucl-th"
    ],
    "doi": "10.1103/PhysRevC.75.034303",
    "journal_ref": "Phys.Rev.C75:034303,2007",
    "title": "Shell-model calculations of two-neutrino double-beta decay rates of   $^{48}$Ca with GXPF1A interaction",
    "url": "https://arxiv.org/abs/nucl-th/0701076"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "472bfe38-0eb8-4772-8a2b-5628846ebf46",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}