Speaker
Dr
David Kosower
(IPhT, CEA-Saclay)
Description
The unitarity method is a key part of the set of on-shell methods for calculating gauge-theory amplitudes both analytically and numerically.
These methods have been used successfully to obtain the one-loop amplitudes needed for a variety of cutting-edge high-multiplicity next-to-leading order calculations for LHC physics. In this talk, I present the first steps in extending maximal unitarity to a computation of two-loop amplitudes, needed for precision LHC calculations. I present the formalism for double-box integrals with various external masses, and aspects of the extension to slashed-box integrals.
