{
  "annotation_id": "741f0690-2b7d-412f-a722-5e73e19bc464",
  "date_created": "2026-03-02T18:00:11.141000Z",
  "date_modified": "2026-03-02T18:00:11.141000Z",
  "file_hash": "87cc5bf09ba04597d4c8c95d08085e1546975e1adf5a3c3c0f88bd7ad52787e0",
  "private": false,
  "record": {
    "abstract": "We calculate the nucleon form factors G_A and G_P of the isovector\naxial-vector current and the pion-nucleon form factor G_piN in manifestly\nLorentz-invariant baryon chiral perturbation theory up to and including order\nO(p^4). In addition to the standard treatment including the nucleon and pions,\nwe also consider the axial-vector meson a_1 as an explicit degree of freedom.\nThis is achieved by using the reformulated infrared renormalization scheme. We\nfind that the inclusion of the axial-vector meson effectively results in one\nadditional low-energy coupling constant that we determine by a fit to the data\nfor G_A. The inclusion of the axial-vector meson results in an improved\ndescription of the experimental data for G_A, while the contribution to G_P is\nsmall.",
    "arxiv_id": "nucl-th/0611083",
    "authors": [
      "M. R. Schindler",
      "T. Fuchs",
      "J. Gegelia",
      "S. Scherer"
    ],
    "categories": [
      "nucl-th"
    ],
    "doi": "10.1103/PhysRevC.75.025202",
    "journal_ref": "Phys.Rev.C75:025202,2007",
    "title": "Axial, induced pseudoscalar, and pion-nucleon form factors in manifestly   Lorentz-invariant chiral perturbation theory",
    "url": "https://arxiv.org/abs/nucl-th/0611083"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "74c3e2bb-cc89-413f-a649-8a79a4aa789d",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}