{
  "annotation_id": "4c4c5475-c506-4962-9388-f1f3e8d47ffd",
  "date_created": "2026-02-17T05:53:08.672000Z",
  "date_modified": "2026-02-17T05:53:08.672000Z",
  "file_hash": "5f8fbe7dffb49b5996abaf844506e313d08e287d7d2f46c67cfa297eff741066",
  "private": false,
  "record": {
    "abstract": "The collapse of the canonical $N=28$ magic number in nuclei with $Z\u003c20$ has drawn significant interest as it relates to the emergence of an island of inversion centered on $^{42}$Si and $^{44}$S. In particular, interactions between the $\\pi s_{1/2}$ orbital -- empty in $^{42}$Si and full in $^{44}$S -- and the neutron orbitals just above and below the $N=28$ gap are expected to be critical in this region, but remain relatively unexplored. In this paper, we expand upon the results of our previous study of the direct transfer reaction $^{47}$K(d,p$\\gamma$)$^{48}$K [C.\\,J.~Paxman \\textit{et al.}, Phys. Rev. Lett. 134, 162504 (2025)] with the results of the complementary $^{47}$K(d,t$\\gamma$)$^{46}$K reaction. Through this study, we present a comprehensive scan of the interaction between the critical $\\pi s_{1/2}$ orbital and a broad range of neutron orbitals spanning nearly two full shells. We identify several discrepancies between the experimental results and state-of-the-art shell model calculations, which suggest a deficiency of the shell model to fully capture the complex proton configuration mixing in this region, highlighting a significant challenge for single-particle descriptions of the island of inversion.",
    "arxiv_id": "2601.06242",
    "authors": [
      "C. J. Paxman",
      "A. Matta",
      "W. N. Catford",
      "G. Lotay",
      "M. Assi\u00e9",
      "E. Cl\u00e9ment",
      "A. Lemasson",
      "D. Ramos",
      "N. A. Orr",
      "F. Galtarossa",
      "V. Girard-Alcindor",
      "J. Dudouet",
      "N. L. Achouri",
      "D. Ackermann",
      "D. Barrientos",
      "D. Beaumel",
      "P. Bednarczyk",
      "G. Benzoni",
      "A. Bracco",
      "L. Canete",
      "B. Cederwall",
      "M. Ciemala",
      "P. Delahaye",
      "D. T. Doherty",
      "C. Domingo-Pardo",
      "B. Fern\u00e1ndez-Dom\u00ednguez",
      "D. Fern\u00e1ndez",
      "F. Flavigny",
      "C. Foug\u00e8res",
      "G. de France",
      "S. Franchoo",
      "A. Gadea",
      "J. Gibelin",
      "V. Gonz\u00e1lez",
      "A. Gottardo",
      "N. Goyal",
      "F. Hammache",
      "L. J. Harkness-Brennan",
      "D. S. Harrouz",
      "B. Jacquot",
      "D. S. Judson",
      "A. Jungclaus",
      "A. Ka\u015fka\u015f",
      "W. Korten",
      "M. Labiche",
      "L. Lalanne",
      "C. Lenain",
      "S. Leoni",
      "J. Ljungvall",
      "J. Lois-Fuentes",
      "T. Lokotko",
      "A. Lopez-Martens",
      "A. Maj",
      "F. M. Marqu\u00e9s",
      "I. Martel",
      "R. Menegazzo",
      "D. Mengoni",
      "B. Million",
      "J. Nyberg",
      "R. M. P\u00e9rez-Vidal",
      "L. Plagnol",
      "Zs. Podoly\u00e1k",
      "A. Pullia",
      "B. Quintana",
      "D. Regueira-Castro",
      "P. Reiter",
      "M. Rejmund",
      "K. Rezynkina",
      "E. Sanchis",
      "M. \u015eenyi\u011fit",
      "N. de S\u00e9r\u00e9ville",
      "M. Siciliano",
      "D. Sohler",
      "O. Stezowski",
      "J. -C. Thomas",
      "A. Utepov",
      "J. J. Valiente-Dob\u00f3n",
      "D. Verney",
      "M. Zieli\u0144ska"
    ],
    "categories": [
      "nucl-ex",
      "nucl-th"
    ],
    "license": "http://creativecommons.org/licenses/by-sa/4.0/",
    "title": "Direct transfer to $^{46,48}$K as a survey of the $\\pi(s_{1/2})$$-\\nu(sdpf)$ interaction",
    "url": "https://arxiv.org/abs/2601.06242",
    "version": "v1"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "012c1369-50cc-4464-9cdd-4f3b836506d5",
    "id": "arXiv Dataset",
    "type": "Model",
    "variant": "snapshot-2026-01-17",
    "version": "0.1.0"
  },
  "user_id": 1000002
}