Tree-level 11D supergravity amplitudes from the pure spinor worldline
Journal article, 2026
We develop a pure spinor worldline formalism for computing tree-level scattering amplitudes in 11D supergravity. Focusing first on the 4-point amplitude, we demonstrate that our prescription is consistent with BRST symmetry and gauge invariance, and that the resulting expression is invariant under permutation of the external particles. Remarkably, the amplitude admits a compact representation in pure spinor superspace and agrees precisely with the result obtained via perturbiner methods. We further extend our construction to the N-point case, proposing a general correlator that preserves BRST closure and gauge invariance, thereby offering a systematic framework for higher-point computations in 11D supergravity.
Supergravity Models
M-Theory
BRST Quantization
Scattering Amplitudes
Author
Max Guillen
Uppsala University
University of Gothenburg
Chalmers, Mathematical Sciences, Algebra and geometry
São Paulo State University (UNESP)
Marcelo dos Santos
São Paulo State University (UNESP)
University of California
Eggon Viana
São Paulo State University (UNESP)
University of Santiago de Compostela (USC)
Durham University
Journal of High Energy Physics
1126-6708 (ISSN) 1029-8479 (eISSN)
Vol. 2026 1 74Subject Categories (SSIF 2025)
Other Physics Topics
Subatomic Physics
DOI
10.1007/JHEP01(2026)074