5. Theoretical Physics (CSN4)

Scattering amplitudes in N=4 Super Yang-Mills theories

Name: Scattering amplitudes in N=4 Super Yang-Mills theories
Start: 2009-06-04T14:30:00+02:00
End: 2009-06-04T15:30:00+02:00
Location: LNF

Thursday 4 Jun 2009, 14:30 → 15:30 Europe/Rome

Auletta B-1 (LNF)

Auletta B-1

LNF

Via Enrico Fermi, 40

Description

Remarkable progress has been made recently regarding the computation of scattering amplitudes in planar N=4 Super Yang-Mills theories. In particular, the ansatz by Bern, Dixon and Smirnov (BDS) for an amplitude to any number of loops and legs was shown to reproduce the two and three-loop four-point amplitudes as well as the two-loop five-point amplitude, but it fails in the finite term for the amplitude with six external legs. I will review the BDS ansatz and discuss where information on the remainder function for n-6 could be obtained.