Journal Club Seminar


Song He (AEI Potsdam)


Dual conformal constraints and infrared equations from global residue theorems in N=4 SYM theory


Abstract:


Infrared equations and dual conformal constraints arise as consistency conditions on loop amplitudes in \Nf super Yang-Mills theory. These conditions are linear relations between leading singularities, which can be computed from the Grassmannian integral of N=4 SYM proposed recently.

Both dual conformal constraints and infrared equations are mapped explicitly to global residue theorems for 1-loop NMHV amplitudes. In addition, the identity relating the BCFW and its parity-conjugated form of tree-level amplitudes, is shown to emerge from a particular combination of global residue theorems.

Details

Date: Wednesday, 26/5/10

Time: 11:30 (Note late start)

Place: Fb-6, Blegdamsvej 17, 2100, Copenhagen