Mainz 2014 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 110: Quantenfeldtheorie 2

T 110.8: Vortrag

Donnerstag, 27. März 2014, 18:30–18:45, P15

Integrand-Reduction and the Color-Kinematic-Duality — •Urlich Schubert — MPI für Physik, München

In this work we combine, for the first time, the unitarity-based construction for integrands, and the recently introduced integrand-reduction through multivariate polynomial division. After discussing the generic features of this novel reduction algorithm, we will apply it to the one- and two-loop five-point amplitudes in N = 4 sYM. Furthermore the integrand-reduction is expoited to investigate the color-kinematic duality for multi-loop scattering amplitudes. Finally, we will extract the leading ultra-violet divergences of the previously constructed amplitudes, which represent a paradigmatic example for studying the UV behaviour of supersymmetric amplitudes.