Gauge-Invariant Double-Copies via Recursion
High Energy Physics - Theory
2023-07-07 v1
Abstract
We prove that all tree-level amplitudes in pure (super-)gravity can be expressed as term-wise, gauge-invariant double-copies of those of pure (super-)Yang-Mills obtained via BCFW recursion. These representations are far from unique: varying the recursive scheme leads to a wide variety of distinct, but equally valid representations of gravitational amplitudes, all realized as double-copies.
Cite
@article{arxiv.2307.02542,
title = {Gauge-Invariant Double-Copies via Recursion},
author = {Jacob L. Bourjaily and Nikhil Kalyanapuram and Kokkimidis Patatoukos and Michael Plesser and Yaqi Zhang},
journal= {arXiv preprint arXiv:2307.02542},
year = {2023}
}
Comments
5+3 pages; 3 tables