The integrand-level reduction of scattering amplitudes is a method for the decomposition of loop integrals which has already been successfully applied and automated at one-loop, and recently extended to higher loops. We present recent developments on the topic, within a coherent framework which can be applied to any integrand at any loop order. We focus on semi-analytic and algebraic techniques, such as the improved one-loop reduction via Laurent series expansion with the library Ninja, and the multi-loop divide-and-conquer approach which can always be used to algebraically find the integrand decomposition of any Feynman graph.
|Number of pages||7|
|Journal||Acta Physica Polonica B|
|Publication status||Published - Nov 2013|
|Event||37th International Conference of Theoretical Physics - Matter to the Deepest - Recent Developments in Physics of Fundamental Interactions - Ustron, Poland|
Duration: 1 Sep 2013 → 6 Sep 2013