3 papers
hep-th2025
UV completions of scalar-tensor EFTs
Edoardo Alviani, Adam Falkowski, Panagiotis Marinellis
We study models that give rise to scalar-tensor effective field theories (EFTs) at low energies. Our framework involves massive particles of spin coupled to gravity a…
hep-th2025
On-shell approach to scalar hair in spinning binaries
Adam Falkowski, Panagiotis Marinellis
We propose an on-shell description of spinning binary systems in gravitational theories where compact objects display scalar hair. The framework involves matter particles of arbitr…
hep-th2025
Spinning waveforms of scalar radiation in quadratic modified gravity
Adam Falkowski, Panagiotis Marinellis
We study scalar-tensor gravitational theories using on-shell amplitude methods. We focus on theories with gravity coupled to a massless scalar via the Gauss-Bonnet and Chern-Simons…