On the NSR formulation of String Theory on AdS_5 X S^5

Details On the NSR formulation of String Theory on AdS_5 X S^5 On the NSR formulation of String Theory on AdS_5 X S^5

1998-12-04

arxiv.org/abs/hep-th/9812044v3

Phys.Lett. B470 (1999) 103-111

Physics

High Energy Physics

High Energy Physics - Theory

15 pages more corrections and references added

Scientific paper

10.1016/S0370-2693(99)01248-4

We discuss the NSR formulation of the superstring action on AdS_5 X S^5 proposed recently by Kallosh and Tseytlin in the Green-Schwarz formalism.We show that the stress-energy tensor corresponding to the NSR action for AdS superstring contains the branelike terms, corresponding to exotic massless vertex operators (refered to as the branelike vertices). The corresponding sigma-model action has the manifest SO(1,3) X SO(6) invariance of superstring theory on AdS_5 X S^5. We argue that adding the branelike terms is equivalent to curving the space-time to obtain the AdS_5 X S^5 background. We commence the study of the proposed NSR sigma-model by analyzing the scattering amplitudes involving the branelike vertex operators.The analysis shows quite an unusual momentum dependence of these scattering amplitudes.

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