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hep-th2026
Gluon Scattering in Expanding de Sitter Universe
Audrey Lindsay, Tomasz R. Taylor
We construct an observer-centric S-matrix in the expanding Poincaré patch of four-dimensional de Sitter space. The asymptotic states are defined along the worldline of a comoving,…
hep-th2026
Three-Gluon Scattering Amplitude in de Sitter Spacetime
Tomasz R. Taylor, Bin Zhu
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…