Theory HEP Seminar

Gravity Amplitudes from Double Bonus Relations

Shruti Paranjape

UC Davis

Planar N=4 super Yang-Mills has many nice properties. For example, there exists a dual positive Grassmannian formulation that allows us to write Yang-Mills tree amplitudes (and loop singularities) as sums of simple building blocks. In this talk, we take a first step towards defining such structure in N=8 supergravity. We focus on tree-level results and provide new expressions for gravity amplitudes in terms of one-loop leading singularities, a signal that there might exist an underlying Grassmannian geometry.