{
  "id": "1507.00652",
  "version": "v1",
  "published": "2015-07-02T16:34:29.000Z",
  "updated": "2015-07-02T16:34:29.000Z",
  "title": "T-duality and $α'$-corrections",
  "authors": [
    "Diego Marques",
    "Carmen A. Nunez"
  ],
  "comment": "35 pages",
  "categories": [
    "hep-th"
  ],
  "abstract": "We construct an $O(d,d)$ invariant universal formulation of the first-order $\\alpha'$-corrections of the string effective actions involving the dilaton, metric and two-form fields. Two free parameters interpolate between four-derivative terms that are even and odd with respect to a $Z_2$-parity transformation that changes the sign of the two-form field. The $Z_2$-symmetric model reproduces the closed bosonic string, and the heterotic string effective action is obtained through a $Z_2$-parity-breaking choice of parameters. The theory is an extension of the generalized frame formulation of Double Field Theory, in which the gauge transformations are deformed by a first-order generalized Green-Schwarz transformation. This deformation defines a duality covariant gauge principle that requires and fixes the four-derivative terms. We discuss the $O(d,d)$ structure of the theory and the (non-)covariance of the required field redefinitions.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2015-07-02T16:34:29.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "corrections",
      "duality covariant gauge principle",
      "two-form field",
      "free parameters interpolate",
      "four-derivative terms"
    ],
    "publication": {
      "doi": "10.1007/JHEP10(2015)084",
      "journal": "Journal of High Energy Physics",
      "year": 2015,
      "month": "Oct",
      "volume": 2015,
      "pages": 84
    },
    "note": {
      "typesetting": "TeX",
      "pages": 35,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "adsabs": "2015JHEP...10..084M",
      "inspire": 1380933
    }
  }
}