arXiv subjects

Ralf Sattler

Publications and source records attributed to Ralf Sattler.

2 recordsLinked to original sources

arXiv2011

One-Loop Helicity Amplitudes for ttbar Production at Hadron Colliders

We present compact analytic expressions for all one-loop helicity amplitudes contributing to ttbar production at hadron colliders. Using recently developed generalised unitarity methods and a traditional Feynman based approach we produce a fast and flexible implementation.

hep-ph↗

arXiv2011

Analytic Computations of Massive One-Loop Amplitudes

We show some new applications of on-shell methods to calculate compact helicity amplitudes for t tbar production through gluon fusion. The rational and mass renormalisation contributions are extracted from two independent Feynman diagram based approaches.

hep-ph↗