Gauge-Invariant Double Copies via Recursion Relations

Jacob L. Bourjaily, Nikhil Kalyanapuram, Kokkimidis Patatoukos, Michael Plesser, Yaqi Zhang

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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.

Original languageEnglish (US)
Article number191601
JournalPhysical review letters
Issue number19
StatePublished - Nov 10 2023

All Science Journal Classification (ASJC) codes

  • General Physics and Astronomy

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