Scattering angle at 3PM in scalar-tensor theories using the PM-EFT formalism
A bstract 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.
Authors
- Stavros Mougiakakos (ORCID: https://orcid.org/0000-0001-9428-7134)
- Laura Bernard (ORCID: https://orcid.org/0000-0003-2856-1662)
- Tamanna Jain
Institutions
- Centre National de la Recherche Scientifique (FR)
- Université Sorbonne Nouvelle (FR)
- Université Paris Cité (FR)
- University of Cambridge (GB)
- Université Paris Sciences et Lettres (FR)
- Sorbonne Université (FR)
Publication Details
- Journal
- Journal of High Energy Physics
- Published
- 2026-06-25
- DOI
- https://doi.org/10.1007/jhep06(2026)252
- Primary Topic
- Cosmology and Gravitation Theories
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- École Normale Supérieure
- Government of Canada
- Agence Nationale de la Recherche
- Institut Périmètre de physique théorique
- Ministry of Colleges and Universities