Sub-sub-leading soft-graviton theorem in arbitrary dimension
Michael Zlotnikov
TL;DR
This paper proves the sub-sub-leading soft-graviton theorem in arbitrary dimensions using the CHY formula for tree-level scattering amplitudes, confirming a recent theoretical proposal.
Contribution
It provides a proof of the sub-sub-leading soft-graviton theorem in any dimension based on the CHY scattering amplitude formalism.
Findings
Confirmed the sub-sub-leading soft-graviton theorem in arbitrary dimensions.
Validated the CHY formula's applicability to graviton scattering amplitudes.
Strengthened the theoretical understanding of soft-graviton behavior.
Abstract
The CHY formula which describes an -point tree level scattering amplitude for scalars, gluons or gravitons in arbitrary dimension [22], is used to prove the sub-sub-leading soft- graviton theorem recently proposed by Cachazo and Strominger [13].
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