Tree-level soft emission for two pairs of quarks
Xinguang Chen, Zhengwen Liu
TL;DR
This paper calculates the tree-level current for emitting two soft quark-antiquark pairs in high-energy scattering, crucial for understanding infrared singularities at very high perturbative orders in QCD.
Contribution
It introduces the computation of the tree-level current for two soft quark pairs and analyzes the resulting color correlations relevant for N4LO QCD predictions.
Findings
Derived the explicit form of the two soft pair emission current.
Analyzed dipole and three-parton color correlations.
Provided tools for infrared singularity analysis at N4LO.
Abstract
We compute the tree-level current for the emission of two soft quark-antiquark pairs in a hard scattering. We also compute the square of this current and discuss the resulting color correlations, featuring dipole correlations and three-parton correlations. This object is essential for analyzing the infrared singularities at next-to-next-to-next-to-next-to-leading-order (N4LO) predictions in perturbative QCD.
Peer Reviews
No public reviews on file for this paper yet. If you reviewed it on a platform where reviews are public (OpenReview, ICLR, NeurIPS, ICML), you can paste yours below so the community can read it here.
Videos
No videos yet. Explain this paper in a talk, walkthrough, or lecture? Add one.
Taxonomy
TopicsQuantum Chromodynamics and Particle Interactions · Atomic and Subatomic Physics Research · Cold Atom Physics and Bose-Einstein Condensates