{
  "id": "2312.13072",
  "version": "v1",
  "published": "2023-12-20T14:52:15.000Z",
  "updated": "2023-12-20T14:52:15.000Z",
  "title": "Structure of the $\\mathbf{Λ(1670)}$ resonance",
  "authors": [
    "Jiong-Jiong Liu",
    "Zhan-Wei Liu",
    "Kan Chen",
    "Dan Guo",
    "Derek B. Leinweber",
    "Xiang Liu",
    "Anthony W. Thomas"
  ],
  "comment": "10 pages, 4 figures, 1 table",
  "categories": [
    "hep-ph",
    "hep-lat",
    "nucl-th"
  ],
  "abstract": "We examine the internal structure of the $\\Lambda(1670)$ through an analysis of lattice QCD simulations and experimental data within Hamiltonian effective field theory. Two scenarios are presented. The first describes the $\\Lambda(1670)$ as a bare three-quark basis state, which mixes with the $\\pi\\Sigma$, $\\bar{K}N$, $\\eta\\Lambda$ and $K\\Xi$ meson-baryon channels. In the second scenario, the $\\Lambda(1670)$ is dynamically generated from these isospin-0 coupled channels. The $K^-p$ scattering data and the pole structures of the $\\Lambda(1405)$ and the $\\Lambda(1670)$ can be simultaneously described well in both scenarios. However, a comparison of the finite-volume spectra to lattice QCD calculations reveals significant differences between these scenarios, with a clear preference for the first case. Thus the lattice QCD results play a crucial role in allowing us to distinguish between these two scenarios for the internal structure of the $\\Lambda(1670)$.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2023-12-20T14:52:15.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "internal structure",
      "lattice qcd results play",
      "bare three-quark basis state",
      "lattice qcd calculations",
      "hamiltonian effective field theory"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 10,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}