Abstract
The basic ingredient of CCFT holography is to regard four-dimensional amplitudes describing conformal wave packets as two-dimensional conformal correlation functions of the operators associated to external particles. By construction, these operators transform as quasi-primary fields under SL(2, ℂ) conformal symmetry group of the celestial sphere. We derive the OPE of the CCFT energy-momentum tensor with the operators representing gauge bosons and show that they transform as Virasoro primaries under diffeomorphisms of the celestial sphere.
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ArXiv ePrint: 1906.10149
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Fotopoulos, A., Taylor, T.R. Primary fields in celestial CFT. J. High Energ. Phys. 2019, 167 (2019). https://doi.org/10.1007/JHEP10(2019)167
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DOI: https://doi.org/10.1007/JHEP10(2019)167