{
  "id": "1004.3983",
  "version": "v3",
  "published": "2010-04-22T18:56:27.000Z",
  "updated": "2010-11-21T18:59:24.000Z",
  "title": "Scattering amplitudes at strong coupling for 4K gluons",
  "authors": [
    "Gang Yang"
  ],
  "comment": "23 pages, 3 figures. v3: A major revision of the paper, various points much clarified, appendix added; no change of the main results",
  "journal": "JHEP 1012:082,2010",
  "doi": "10.1007/JHEP12(2010)082",
  "categories": [
    "hep-th"
  ],
  "abstract": "In this paper we study the scattering amplitudes at strong coupling for the case where the number of gluons is a multiple of four. This is an important missing piece in arXiv:1002.2459. The tricky point for n=4K is that there is some accidental degeneracy in such case. We explain this point in detail and show that a non-trivial monodromy around infinity was developed by the world-sheet coordinate transformation appearing in the computation. It turns out that besides solving the Y system, we also need to calculate T functions to compute the full amplitudes. We show that the T functions can be derived by taking a limit of Y functions of a higher-point case. As a check, we obtain the known result of eight-point in AdS_3 case.",
  "revisions": [
    {
      "version": "v3",
      "updated": "2010-11-21T18:59:24.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "scattering amplitudes",
      "strong coupling",
      "4k gluons",
      "accidental degeneracy",
      "important missing piece"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "Springer",
      "journal": "Journal of High Energy Physics",
      "year": 2010,
      "month": "Dec",
      "volume": 2010,
      "pages": 82
    },
    "note": {
      "typesetting": "TeX",
      "pages": 23,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 852673,
      "adsabs": "2010JHEP...12..082Y"
    }
  }
}