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28 March 2024
 
  » arxiv » hep-th/0307298

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The Ramond-Ramond sector of string theory beyond leading order
Kasper Peeters ; Anders Westerberg ;
Date 31 Jul 2003
Journal Class.Quant.Grav. 21 (2004) 1643-1666
Subject hep-th
AbstractPresent knowledge of higher-derivative terms in string effective actions is, with a few exceptions, restricted to the NS-NS sector, a situation which prevents the development of a variety of interesting applications for which the RR terms are relevant. We here provide the formalism as well as efficient techniques to determine the latter directly from string-amplitude calculations. As an illustration of these methods, we compute the dependence of the type-IIB action on the three- and five-form RR field strengths at four-point, genus-one, order-(alpha’)^3 level. We explicitly verify that our results are in accord with the SL(2,Z) S-duality invariance of type-IIB string theory. Extensions of our method to other bosonic terms in the type-II effective actions are discussed as well.
Source arXiv, hep-th/0307298
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