Gauge-Invariant Double Copies via Recursion Relations

We prove by construction that all tree-level amplitudes in pure (super)gravity can be expressed as termwise, gauge-invariant double copies of those of pure (super-)Yang-Mills obtained via on-shell recursion. These representations are far from unique: varying the recursive scheme leads to a wide vari...

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Bibliographic Details
Published in:Physical review letters 2023-11, Vol.131 (19), p.191601-191601, Article 191601
Main Authors: Bourjaily, Jacob L., Kalyanapuram, Nikhil, Patatoukos, Kokkimidis, Plesser, Michael, Zhang, Yaqi
Format: Article
Language:English
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Summary:We prove by construction that all tree-level amplitudes in pure (super)gravity can be expressed as termwise, gauge-invariant double copies of those of pure (super-)Yang-Mills obtained via on-shell 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.
ISSN:0031-9007
1079-7114
DOI:10.1103/PhysRevLett.131.191601