Speaker: Kevin Costello (Perimeter Institute, Canada)
Time & Date: 9 am, April 9, Wednesday
Location: Online
Abtsract: Vertex algebras are ubiquitous in the study of supersymmetric systems. I will discuss how certain vertex algebras yield new insight into scattering amplitudes of four dimensional gauge theory with no supersymmetry. This method allows one to perform new computations of two-loop scattering amplitudes for any number of external particles. With four external particles, this computation has been cross-checked against computations done using standard methods. This is partially based on joint works with Natalie Paquette, Roland Bittleston, and Keyou Zeng.
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