Abstract
We give a new formula for all treelevel correlators of boundary field insertions in gauged N=8 supergravity in AdS4; this is an analogue of the treelevel Smatrix in antide Sitter space. The formula is written in terms of rational maps from the Riemann sphere to twistor space, with no reference to bulk perturbation theory. It is polynomial in the cosmological constant, and equal to the classical scattering amplitudes of supergravity in the flat space limit. The formula is manifestly supersymmetric, independent of gauge choices on twistor space, and equivalent to expressions computed via perturbation theory at 3point MHV and npoint MHV. We also show that the formula factorizes and obeys BCFW recursion in twistor space.
Original language  English 

Article number  98 
Number of pages  20 
Journal  Journal of High Energy Physics 
Volume  2015 
DOIs  
Publication status  Published  16 Nov 2015 
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Tim Adamo
 School of Mathematics  Royal Society University Research Fellow
Person: Academic: Research Active