Scattering angle at 3PM in scalar-tensor theories using the PM-EFT formalism

arXiv (Cornell University) 2026 Preprint Open access

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Authors: Laura Bernard, Tamanna Jain, Stavros Mougiakakos
Cited by: 0

Abstract

In this work, we derive the conservative dynamics of non-spinning binaries in the massless scalar-tensor theories using the post-Minkowskian Effective Field Theory (EFT) approach. Our main result is an analytic expression of the scattering angle, computed up to third Post-Minkowskian order via two-loop Feynman diagrams. Our results are in perfect agreement with previous literature, in particular within the post-Newtonian limit.

Fields of Study & Subjects

Pulsars and Gravitational Waves Research Cosmology and Gravitation Theories Black Holes and Theoretical Physics

Publication details

Journal / source
arXiv (Cornell University)
Publication date
24 January 2026
Document type
Preprint