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Singularity structure of gravity amplitudes

Presented by: 
Jaroslav Trnka University of California, Davis
Friday 1st July 2016 - 16:00 to 17:00
INI Seminar Room 1
Coauthor: Enrico Herrmann

There has been a lot of progress in exploring new mathematical structures in N=4 SYM amplitudes: on-shell diagrams and Amplituhedron in the planar sector, and special properties of integrands beyond the planar limit. I will review some of these developments and then focus how the similar ideas can be extended to N=8 supergravity amplitudes. As it turns out the singularity structure of supergravity amplitudes is very different and it exhibits some surprising features at both UV and IR.
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University of Cambridge Research Councils UK
    Clay Mathematics Institute London Mathematical Society NM Rothschild and Sons