INTEGRAND-LEVEL REDUCTION AT ONE AND HIGHER LOOPS

Tiziano Peraro*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

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.

Original languageEnglish
Pages (from-to)2215-2221
Number of pages7
JournalActa Physica Polonica B
Volume44
Issue number11
DOIs
Publication statusPublished - Nov 2013
Event37th International Conference of Theoretical Physics - Matter to the Deepest - Recent Developments in Physics of Fundamental Interactions - Ustron, Poland
Duration: 1 Sep 20136 Sep 2013

Keywords

  • AMPLITUDES

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