{
  "annotation_id": "2c1f1d67-b5ba-47e0-b18c-3ed4ed6baf0b",
  "date_created": "2026-03-02T18:00:14.754000Z",
  "date_modified": "2026-03-02T18:00:14.754000Z",
  "file_hash": "683a69cf7d6e38673f5973aad418e1a8880cf6c48e97205cbe9884f37cccc2fe",
  "private": false,
  "record": {
    "abstract": "Using a quark model, we calculate symmetry breaking effects in the valence\nquark distributions of the nucleon. In particular, we examine the breaking of\nthe quark model SU(4) symmetry by color magnetic effects, and find that color\nmagnetism provides an explanation for deviation of the ratio $d_V(x)/u_V(x)$\nfrom $1/2$. Additionally, we calculate the effect of charge symmetry breaking\nin the valence quark distributions of the proton and neutron and find, in\ncontrast to other authors, that the effect is too small to be seen\nexperimentally.",
    "arxiv_id": "nucl-th/9508041",
    "authors": [
      "C. J. Benesh",
      "T. Goldman",
      "G. J. Stephenson Jr."
    ],
    "categories": [
      "nucl-th"
    ],
    "title": "Quark Model Calculations Of Symmetry Breaking in Parton Distributions",
    "url": "https://arxiv.org/abs/nucl-th/9508041"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "0513239c-3928-4648-aa78-e4b53ccb097e",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}