We use cookies to ensure that we give you the best experience on our website. By continuing to browse this repository, you give consent for essential cookies to be used. You can read more about our Privacy and Cookie Policy.

Durham Research Online
You are in:

Extracting analytical one-loop amplitudes from numerical evaluations.

Laurentis, Giuseppe De and Maitre, Daniel (2019) 'Extracting analytical one-loop amplitudes from numerical evaluations.', Journal of high energy physics., 7 . p. 123.


In this article we present a method to generate analytic expressions for the integral coefficients of loop amplitudes using numerical evaluations only. We use highprecision arithmetics to explore the singularity structure of the coefficients and decompose them into parts of manageable complexity. To illustrate the usability of our method we provide analytical expressions for all helicity configurations of the colour-ordered six-point gluon amplitudes at one loop with a gluon in the loop.

Item Type:Article
Full text:(VoR) Version of Record
Available under License - Creative Commons Attribution.
Download PDF
Publisher Web site:
Publisher statement:This article is distributed under the terms of the Creative Commons Attribution License (CC-BY 4.0), which permits any use, distribution and reproduction in any medium, provided the original author(s) and source are credited.
Date accepted:30 June 2019
Date deposited:01 August 2019
Date of first online publication:22 July 2019
Date first made open access:No date available

Save or Share this output

Look up in GoogleScholar