{
  "annotation_id": "e04286e1-82e4-411d-9bea-975716f70146",
  "date_created": "2026-02-17T05:53:24.215000Z",
  "date_modified": "2026-02-17T05:53:24.215000Z",
  "file_hash": "dafd0aeec803406a278405b3c12d82d1c30996ef58c0027982c61e37c23ff128",
  "private": false,
  "record": {
    "abstract": "We will calculate the diquark mass together with the quark-diquark potential. We apply an extended HAL QCD potential method to a baryonic system made up from a static quark and a diquark. Numerical calculations are performed by employing 2+1 flavor QCD gaugeconfigurations generated by CP-PACS and JLQCD Collaborations on a $16^{3} \\times 32$ lattice with $a^{-1} \\approx 1.6$ GeV. To improve the statistical noise in the propagators of the static quark, the HYP smearing is employed on the gauge links. Two-point correlators of quark-diquark baryonic system are then computed to obtain their ground-state energies where various types of diquarks are considered (eg: scalar diquark, axial-vector diquark etc). We apply an extended HAL QCD method on a baryonic system made up from a scalar diquark and a static quark to study the scalar diquark mass and the quark-diquark potential. In order to determine the diquark mass self-consistently in this HALQCD method, we demand that the baryonic spectrum in the p-wave sector obtained from the two-point correlators should be reproduced by the potential obtained from the baryonic system in the s-wave sector. We obtain the scalar diquark mass of roughly $(2/3) m_{N}$ , i.e., twice the na\\\"ive estimates of a constituent quark mass together with the quark-diquark potential of Cornell type (Coulomb + linear).",
    "arxiv_id": "2601.10091",
    "authors": [
      "Kai-Wen Kelvin-Lee",
      "Noriyoshi Ishii"
    ],
    "categories": [
      "hep-lat"
    ],
    "doi": "10.22323/1.500.0113",
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "title": "Diquark mass and quark-diquark potential by lattice QCD using an extended HAL QCD method with a static quark",
    "url": "https://arxiv.org/abs/2601.10091",
    "version": "v1"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "bb19204e-2212-485b-9fd8-4b60ea27fae3",
    "id": "arXiv Dataset",
    "type": "Model",
    "variant": "snapshot-2026-01-17",
    "version": "0.1.0"
  },
  "user_id": 1000002
}