Tree-level three-gluon amplitudes in de Sitter spacetime are given by a general formula in terms of Wigner 3j symbols derived from SO(1,4) intertwiner integrals.
Notes on gauge fields and discrete series representations in de Sitter spacetimes
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SO(1,4) isometries yield explicit transformation laws and Ward identities for de Sitter amplitudes that reduce to Poincaré invariance at high momenta.
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Three-Gluon Scattering Amplitude in de Sitter Spacetime
Tree-level three-gluon amplitudes in de Sitter spacetime are given by a general formula in terms of Wigner 3j symbols derived from SO(1,4) intertwiner integrals.
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Symmetries of de Sitter Particles and Amplitudes
SO(1,4) isometries yield explicit transformation laws and Ward identities for de Sitter amplitudes that reduce to Poincaré invariance at high momenta.