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arXiv · 2604.24844

Three-Gluon Scattering Amplitude in de Sitter Spacetime

Tomasz R. Taylor·Bin Zhu
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Abstract

We study three-gluon scattering amplitudes in global de Sitter spacetime, in the angular momentum basis of SO(1,4) symmetry representations. At the tree level, they are determined by the intertwiner integrals of harmonic one-forms on the three-sphere. We derive a general formula valid for all helicity configurations of incoming and outgoing gluons and express the amplitudes in terms of Wigner 3j symbols.

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Tomasz R. Taylor, Bin Zhu. 2026-04-27. Three-Gluon Scattering Amplitude in de Sitter Spacetime. https://arxiv.org/abs/2604.24844

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