Journal of High Energy Physics (Feb 2023)

Celestial conformal colliders

  • Yangrui Hu,
  • Sabrina Pasterski

DOI
https://doi.org/10.1007/JHEP02(2023)243
Journal volume & issue
Vol. 2023, no. 2
pp. 1 – 35

Abstract

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Abstract We start by observing that the light-ray operators featured in the conformal collider literature are celestial primaries. This allows us to rephrase the corresponding 4D CFT correlators as probing a conformally soft matter sector of the 2D celestial CFT (CCFT). To demonstrate the utility of this perspective we show how the recent w 1+∞ symmetry observed in CCFT suggests a natural extension of the conformal collider operators.

Keywords