{
  "id": "nucl-th/9904031",
  "version": "v1",
  "published": "1999-04-12T22:37:16.000Z",
  "updated": "1999-04-12T22:37:16.000Z",
  "title": "The N N -> NN pi+ Reaction near Threshold in a Chiral Power Counting Approach",
  "authors": [
    "C. A. da Rocha",
    "G. A. Miller",
    "U. van Kolck"
  ],
  "comment": "31 pages, 17 figures",
  "journal": "Phys.Rev. C61 (2000) 034613",
  "doi": "10.1103/PhysRevC.61.034613",
  "categories": [
    "nucl-th"
  ],
  "abstract": "Power-counting arguments are used to organize the interactions contributing to the N N -> d pi, p n pi reactions near threshold. We estimate the contributions from the three formally leading mechanisms: the Weinberg-Tomozawa (WT) term, the impulse term, and the $\\Delta$-excitation mechanism. Sub-leading but potentially large mechanisms, including $S$-wave pion-rescattering, the Galilean correction to the WT term, and short-ranged contributions are also examined. The WT term is shown to be numerically the largest, and the other contributions are found to approximately cancel. Similarly to the reaction p p -> p p pi0, the computed cross sections are considerably smaller than the data. We discuss possible origins of this discrepancy.",
  "revisions": [
    {
      "version": "v1",
      "updated": "1999-04-12T22:37:16.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "chiral power counting approach",
      "wt term",
      "contributions",
      "cross sections",
      "potentially large mechanisms"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "APS",
      "journal": "Phys. Rev. C"
    },
    "note": {
      "typesetting": "TeX",
      "pages": 31,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 498197
    }
  }
}