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hep-th2022★ 21 cited
Celestial Yang-Mills Amplitudes and D=4 Conformal Blocks
Wei Fan, Angelos Fotopoulos, Stephan Stieberger +2
We discuss the properties of recently constructed "single-valued" celestial four-gluon amplitudes. We show that the amplitude factorizes into the "current" part and the "scalar" pa…
hep-th2022★ 51 cited
Elements of Celestial Conformal Field Theory
Wei Fan, Angelos Fotopoulos, Stephan Stieberger +2
In celestial holography, four-dimensional scattering amplitudes are considered as two-dimensional conformal correlators of a putative two-dimensional celestial conformal field theo…