The double-soft integral for an arbitrary angle between hard radiators

Caola, Fabrizio; Delto, Maximilian; Frellesvig, Hjalte; Melnikov, Kirill

Abstract

We consider the double-soft limit of a generic QCD process involving massless partons and integrate analytically the double-soft eikonal functions over the phasespace of soft partons (gluons or quarks) allowing for an arbitrary relative angle between the three-momenta of two hard massless radiators. This result provides one of the missing ingredients for a fully analytic formulation of the nested softcollinear subtraction scheme described in Caola et al. (Eur Phys J C 77(4):248, 2017).

Citation

Caola, F., Delto, M., Frellesvig, H., & Melnikov, K. (2018). The double-soft integral for an arbitrary angle between hard radiators. The European Physical Journal C, 78(8), Article 687. https://doi.org/10.1140/epjc/s10052-018-6180-7

• Journal Article Type: Article
• Acceptance Date: Aug 22, 2018
• Online Publication Date: Aug 29, 2018
• Publication Date: Aug 29, 2018
• Deposit Date: Sep 20, 2018
• Publicly Available Date: Sep 20, 2018
• Journal: European Physical Journal C: Particles and Fields
• Print ISSN: 1434-6044
• Electronic ISSN: 1434-6052
• Publisher: SpringerOpen
• Peer Reviewed: Peer Reviewed
• Volume: 78
• Issue: 8
• Article Number: 687
• DOI: https://doi.org/10.1140/epjc/s10052-018-6180-7
• Public URL: https://durham-repository.worktribe.com/output/1314198