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PIRSA:23030100

Celestial Locality and the Jacobi Identity

APA

Ball, A. (2023). Celestial Locality and the Jacobi Identity. Perimeter Institute for Theoretical Physics. https://pirsa.org/23030100

Adam Ball Brown University

Talk numberPIRSA:23030100
Source RepositoryPIRSA

Abstract

In this talk I will show the equivalence of several different tests of the Jacobi identity for celestial currents at tree level, in particular finding a simple, practical condition on hard momentum space 4-point amplitudes in any EFT. Along the way I will clarify the role of the order of soft and collinear limits in obstructing the Jacobi identity for soft insertions and I will argue that, despite their current-algebra-like properties, soft insertions as formulated in this talk cannot be interpreted as local operators in celestial conformal field theory.

Zoom link:  https://pitp.zoom.us/j/99642885302?pwd=dWZhbzZUYnBuSlJ3UzBhSHdqdzVKdz09