
TL;DR
This paper demonstrates that higher-order gauge and gravity amplitudes can be constructed from tree amplitudes with added particle pairs, simplifying complex calculations and exemplified through a four-gluon amplitude computation.
Contribution
It introduces a method to express all perturbative amplitudes as forward limits of tree amplitudes with extra particle pairs, extending the utility of BCFW recursion.
Findings
Higher-order amplitudes are given by tree amplitudes with added pairs in the forward limit.
Explicit computation of the four-gluon all-plus helicity amplitude at next-to-leading order.
The approach simplifies calculations of complex gauge and gravity amplitudes.
Abstract
Tree amplitudes of any gauge theory and gravity can be factorized into primitive three-particle amplitudes by the BCFW recursion relations. We show that the amplitudes at any perturbation order are given by tree amplitudes with additional pairs of particles in the forward limit. As an example we compute the four-gluon all-plus helicity amplitude at next-to-leading order.
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
TopicsParticle physics theoretical and experimental studies · Black Holes and Theoretical Physics · Computational Physics and Python Applications
