Departmental Seminar
Maximal Unitarity at Two Loops
Location
Audience
Theoretical Physics Seminar:
Topic: Maximal Unitarity at Two Loops
Abstract:
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. They have been applied both to
analytic calculations, and in the framework of numerical codes such as
BlackHat. In this talk, I review the unitarity method at one loop, and
discuss the first steps in extending maximal
unitarity to a computation of two-loop amplitudes, needed for precision LHC
calculations.
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