A note on the analyticity of AdS scalar exchange graphs in the crossed channel

Details A note on the analyticity of AdS scalar exchange graphs in the crossed channel A note on the analyticity of AdS scalar exchange graphs in the crossed channel

2000-02-03

arxiv.org/abs/hep-th/0002025v1

Phys.Lett. B478 (2000) 320-326

Physics

High Energy Physics

High Energy Physics - Theory

9 pages, LaTeX

Scientific paper

10.1016/S0370-2693(00)00283-5

We discuss the analytic properties of AdS scalar exchange graphs in the crossed channel. We show that the possible non-analytic terms drop out by virtue of non-trivial properties of generalized hypergeometric functions. The absence of non-analytic terms is a necessary condition for the existence of an operator product expansion for CFT amplitudes obtained from AdS/CFT correspondence.

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