The browser you are using is not supported by this website. All versions of Internet Explorer are no longer supported, either by us or Microsoft (read more here: https://www.microsoft.com/en-us/microsoft-365/windows/end-of-ie-support).

Please use a modern browser to fully experience our website, such as the newest versions of Edge, Chrome, Firefox or Safari etc.

photo Rikkert Frederix

Rikkert Frederix

Senior lecturer

photo Rikkert Frederix

The colour matrix at next-to-leading-colour accuracy for tree-level multi-parton processes

Author

  • Rikkert Frederix
  • Timea Vitos

Summary, in English

We investigate the next-to-leading-colour (NLC) contributions to the colour matrix in the fundamental and the colour-flow decompositions for tree-level processes with all gluons, one quark pair and two quark pairs. By analytical examination of the colour factors, we find the non-zero elements in the colour matrix at NLC. At this colour order, together with the symmetry of the phase-space, it is reduced from factorial to polynomial the scaling of the contributing dual amplitudes as the number of partons participating in the scattering process is increased. This opens a path to an accurate tree-level matrix element generator of which all factorial complexity is removed, without resulting to Monte Carlo sampling over colour.

Department/s

  • Theoretical Particle Physics - Has been reorganised

Publishing year

2021-12

Language

English

Publication/Series

Journal of High Energy Physics

Volume

2021

Issue

12

Document type

Journal article

Publisher

Springer

Topic

  • Subatomic Physics

Keywords

  • QCD Phenomenology

Status

Published

ISBN/ISSN/Other

  • ISSN: 1029-8479