{
  "annotation_id": "3122d1a3-15cd-47f9-a498-8da9ff423973",
  "date_created": "2026-03-02T18:00:11.606000Z",
  "date_modified": "2026-03-02T18:00:11.606000Z",
  "file_hash": "2f0143015608c7e0cfc4b07c1a198aa17e457f182e6b48a5da709eaf58141091",
  "private": false,
  "record": {
    "abstract": "The effects of initial-state Coulomb interactions in the\ncharge-symmetry-breaking reaction dd -\u003e alpha pi^0 are investigated within a\npreviously published formalism. This is a leading order effect in which the\nCoulomb interaction between the two initial state protons leads to the breakup\nof the two deuterons into a continuum state that is well connected to the final\nalpha pi^0 state by the strong emission of a pion. As a first step, we use a\nsimplified set of d and alpha wave functions and a plane-wave approximation for\nthe initial dd state. This Coulomb mechanism, by itself, yields cross sections\nthat are much larger than the experimental ones, and which are comparable in\nsize to the contributions from other mechanisms. Inclusion of this mechanism is\ntherefore necessary in a realistic calculation.",
    "arxiv_id": "nucl-th/0703021",
    "authors": [
      "Timo A. L\u00e4hde",
      "G. A. Miller"
    ],
    "categories": [
      "nucl-th",
      "hep-ph",
      "nucl-ex"
    ],
    "doi": "10.1103/PhysRevC.75.055204",
    "journal_ref": "Phys.Rev.C75:055204,2007",
    "title": "Initial-State Coulomb Interaction in the dd -\u003e alpha pi^0 Reaction",
    "url": "https://arxiv.org/abs/nucl-th/0703021"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "f2cbc88e-8d0c-416f-b4d1-888e4f52a893",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}