Regular celestial amplitudes
Abstract
A bstract Conventional massless celestial amplitudes are distributional and fail to realize the celestial OPE — most sharply in the non-MHV paradox, where OPEs predict nonzero celestial amplitudes with helicities −+++ that are known to vanish at tree level. To resolve this, we introduce regular celestial amplitudes. We demonstrate that at tree-level, these amplitudes are non-distributional and, crucially, consistent with the celestial OPE. This suggests a revised dictionary: CCFT correlators are the regular, not conventional, celestial amplitudes.
Fields of Study & Subjects
Astrophysics and Cosmic Phenomena
Solar and Space Plasma Dynamics
Cosmology and Gravitation Theories
Publication details
- Journal / source
- Journal of High Energy Physics
- Publisher
- Springer Science and Business Media LLC
- Volume
- 2026
- Issue
- 9
- Publication date
- 3 September 2026
- Language
- EN