{
  "id": "hep-th/9910011",
  "version": "v1",
  "published": "1999-10-01T16:50:03.000Z",
  "updated": "1999-10-01T16:50:03.000Z",
  "title": "Explicit construction of nilpotent covariants in N=4 SYM",
  "authors": [
    "P. S. Howe",
    "C. Schubert",
    "E. Sokatchev",
    "P. C. West"
  ],
  "comment": "20 pages, standard latex",
  "journal": "Nucl.Phys. B571 (2000) 71-90",
  "doi": "10.1016/S0550-3213(99)00768-3",
  "categories": [
    "hep-th"
  ],
  "abstract": "Some aspects of correlation functions in N=4 SYM are discussed. Using N=4 harmonic superspace we study two and three-point correlation functions which are of contact type and argue that these contact terms will not affect the non-renormalisation theorem for such correlators at non-coincident points. We then present a perturbative calculation of a five-point function at two loops in N=2 harmonic superspace and verify that it reproduces the derivative of the previously found four-point function with respect to the coupling. The calculation of this four-point function via the five-point function turns out to be significantly simpler than the original direct calculation. This calculation also provides an explicit construction of an N=2 component of an N=4 five-point nilpotent covariant that violates U(1)_Y symmetry.",
  "revisions": [
    {
      "version": "v1",
      "updated": "1999-10-01T16:50:03.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "explicit construction",
      "harmonic superspace",
      "four-point function",
      "three-point correlation functions",
      "five-point function turns"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "Elsevier",
      "journal": "Nucl. Phys. B"
    },
    "note": {
      "typesetting": "LaTeX",
      "pages": 20,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 508027
    }
  }
}