Symmetries of celestial amplitudes

Stieberger, Stephan  (Max–Planck–Institut für Physik, Werner–Heisenberg–Institut, München, 80805, Germany) ; Taylor, Tomasz R.  (Department of Physics, Northeastern University, Boston, MA, 02115, USA)

24 April 2019

Abstract: Celestial amplitudes provide holographic imprints of four-dimensional scattering processes in terms of conformal correlation functions on a two-dimensional sphere describing Minkowski space at null infinity. We construct the generators of Poincaré and conformal groups in the celestial representation and discuss how these symmetries are manifest in the amplitudes.

Published in: Physics letters B (2019)
Published by: Elsevier
DOI: 10.1016/j.physletb.2019.03.063
License: CC-BY-3.0

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