Abstract
We show that general parity-violating 3d conformal field theories show a double copy structure for momentum space 3-point functions of conserved currents, stress tensor and marginal scalar operators. Splitting up the CFT correlator into two parts — called homogeneous and non-homogeneous — we show that double copy relations exist for each part separately. We arrive at similar conclusions regarding double copy structures using tree-level correlators of massless fields in dS4. We also discuss the flat space limit of these correlators. We further extend the double copy analysis to correlators involving higher-spin conserved currents, which suggests that the spin-s current correlator can be thought of as s copies of the spin one current correlator.
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Jain, S., John, R.R., Mehta, A. et al. Double copy structure of parity-violating CFT correlators. J. High Energ. Phys. 2021, 33 (2021). https://doi.org/10.1007/JHEP07(2021)033
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DOI: https://doi.org/10.1007/JHEP07(2021)033