Gravitational S-matrix from CFT dispersion relations
By L. Alday, S. Caron-Huot. Journal of High Energy Physics, 2017
169 citations recorded by the source corpus.
A bstractWe analyse the double-discontinuities of the four-point correlator of the stress-tensor multiplet in N=4 SYM at large t’ Hooft coupling and at order 1/N4, as a way to access one-loop effects in the dual supergravity theory. From these singularities we extract CFT-data by using two inversion procedures: one based on a recently proposed Froissart-Gribov inversion integral, and the other based on large spin perturbation theory. Both procedures lead to the same results and are shown to be equivalent more generally. Our computation parallels the standard S-matrix reconstruction via dispersion relations. In a suitable limit, the result of the conformal field theory calculation is compared with the one-loop graviton scattering amplitude in ten-dimensional IIB supergravity in flat space, finding perfect agreement.
Subfields: Astronomy and Astrophysics, Nuclear and High Energy Physics
View Paper: https://www.semanticscholar.org/paper/da70395a9b0c4ea65f719961e20e533556b3536d
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In Astronomy and Astrophysics
In Nuclear and High Energy Physics
- Petr Kravchuk
- David Simmons-Duffin
- S. Rychkov
- David Poland
- A. Vichi
- Filip Kos
- S. Caron-Huot
- A. Fitzpatrick
Citations in the corpus
- Light-ray operators in conformal field theory (2018, background): “ntzian inversion formulae make it particularly simple to study OPE coefficients and anomalous dimensions of “double-twist operators” [17, 18] and averaged OPE data for “multi-twist” operators (see e.g. [94, 95]). An important problem for the future is to disentangle individual multi-twist trajectories”