{
  "id": "2201.11555",
  "version": "v1",
  "published": "2022-01-27T14:56:59.000Z",
  "updated": "2022-01-27T14:56:59.000Z",
  "title": "Pion Photoproduction off Nucleon with Hamiltonian Effective Field Theory",
  "authors": [
    "Dan Guo",
    "Zhan-Wei Liu"
  ],
  "comment": "8 pages, 2 figures",
  "categories": [
    "hep-ph",
    "nucl-th"
  ],
  "abstract": "We analyze the $\\gamma N\\to\\pi N$ process in the negative parity channel with Hamiltonian effective filed theory which is successful in studying the nucleon resonances associated with the meson-nucleon scattering and lattice QCD simulations. We provide the scattering amplitude of pion photoproduction and extract the electric dipole amplitudes $E_{0+}$. The triquark component in $N^*(1535)$ is important for improving the consistence between our results and the experimental data.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2022-01-27T14:56:59.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "hamiltonian effective field theory",
      "pion photoproduction",
      "lattice qcd simulations",
      "electric dipole amplitudes",
      "nucleon resonances"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 8,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}