Modified celestial amplitude in Einstein gravity

Abstract

In this paper we evaluate the modified celestial amplitude for gravitons and gluons, as defined in arXiv:1801.10171[hep-th]. We find that the modified (tree) amplitude is finite for gravitons in Einstein gravity. The modified amplitude behaves like correlation function of operators inserted at various points of null-infinity in the Minkowski space-time. Therefore, unlike the standard celestial amplitudes, these are three dimensional objects. We also show that this amplitude admits conformal soft factorization recently studied in the literature.

arXiv comment18 pages, Latex; reference added; typos corrected

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Cited by in corpus (19)

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• AdS Witten Diagrams to Carrollian Correlators
• BMS Symmetry of Celestial OPE
• MHV Graviton Scattering Amplitudes and Current Algebra on the Celestial Sphere
• MHV Gluon Scattering Amplitudes from Celestial Current Algebras
• Goldilocks Modes and the Three Scattering Bases
• Symmetries of free massless particles and soft theorems
• Two-loop leading-color helicity amplitudes for three-photon production at the LHC
• On loop celestial amplitudes for gauge theory and gravity
• Relativistic partial waves for celestial amplitudes
• Subsubleading soft graviton symmetry and MHV graviton scattering amplitudes
• On Sugawara construction on Celestial Sphere
• One-Loop Quantum Effects in Carroll Scalars
• Massive Spinning Bosons on the Celestial Sphere
• Soft Gravity by Squaring Soft QED on the Celestial Sphere
• (Chiral) Virasoro invariance of the tree-level MHV graviton scattering amplitudes
• The Holographic Soft $S$-Matrix in QED and Gravity
• Gauge and Gravity Amplitudes on the Celestial Sphere
• The Sky Remembers everything: Celestial amplitude, Shadow and OPE in quadratic EFT of gravity