Departmental Seminar

Maximal Unitarity at Two Loops

David Kosower

Theoretical Physics Seminar:

Topic: Maximal Unitarity at Two Loops


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

Date & time

Fri 29 Jun 2012, 11am–12pm


Location: LeCouteur Seminar room, level 3, 3.17


Staff, students and public welcome