The Ramond-Ramond sector of string theory beyond leading order

Details The Ramond-Ramond sector of string theory beyond leading order The Ramond-Ramond sector of string theory beyond leading order

2003-07-31

arxiv.org/abs/hep-th/0307298v3

Class.Quant.Grav. 21 (2004) 1643-1666

Physics

High Energy Physics

High Energy Physics - Theory

27 pages; v2: discussion of superfield literature corrected, reference added; v3: discussion of the modified self-duality cons

Scientific paper

10.1088/0264-9381/21/6/022

Present 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.

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