Speaker
Emery Sokatchev
(LAPTH, Annecy)
Description
We discuss the realization of dual and conventional
superconformal symmetries on the scattering amplitudes in
N=4 SYM. While these symmetries are exact at tree level,
they have to be complemented with analytic properties to
fully fix the tree. At loop level both symmetries are broken
by different mechanisms. We describe the formulation of
amplitudes in twistor space and in terms of Grassmannian
invariants.
Primary author
Emery Sokatchev
(LAPTH, Annecy)
