{
  "id": "2106.11450",
  "version": "v1",
  "published": "2021-06-21T23:37:13.000Z",
  "updated": "2021-06-21T23:37:13.000Z",
  "title": "Hidden charm pentaquark with strangeness $P_{cs}^*(4739)$ as a $Σ_{c}\\bar{D}\\bar{K}$ bound state",
  "authors": [
    "Tian-Wei Wu",
    "Ya-Wen Pan",
    "Ming-Zhu Liu",
    "Jun-Xu Lu",
    "Li-Sheng Geng",
    "Xiao-Hai Liu"
  ],
  "comment": "17 pages, 4 figures",
  "categories": [
    "hep-ph",
    "hep-ex",
    "hep-lat"
  ],
  "abstract": "Motivated by the recent discovery of the first hidden charm pentaquark state with strangeness $P_{cs}(4459)$ by the LHCb Collaboration, we study the likely existence of a three-body $\\Sigma_{c}\\bar{D}\\bar{K}$ bound state, which shares the same minimal quark content as $P_{cs}(4459)$. The $\\Sigma_{c}\\bar{D}$ and $DK$ interactions are determined by reproducing $P_c(4312)$ and $D_{s0}^*(2317)$ as $\\Sigma_c\\bar{D}$ and $\\bar{D}\\bar{K}$ molecules, respectively, while the $\\Sigma_c\\bar{K}$ interaction is constrained by chiral effective theory. We indeed find a three-body bound state by solving the Schr\\\"odinger equation using the Gaussian Expansion Method, which can be viewed as an excited hidden charm pentaquark state with strangeness, $P_{cs}^*(4739)$, with $I(J^P)=1(1/2^+)$ and a binding energy of $77.8^{+25}_{-10.3}$ MeV. We further study its strong decays via triangle diagrams and show that its partial decay widths into $D\\Xi_c'$ and $D_s^*\\Sigma_c$ are of a few ten's MeV, with the former being dominant.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2021-06-21T23:37:13.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "strangeness",
      "first hidden charm pentaquark state",
      "excited hidden charm pentaquark state",
      "gaussian expansion method",
      "three-body bound state"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 17,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}