43 citations · 163 across the 5 of their papers we have counts for
5 papers
Massive Gravity is not Positive
Brando Bellazzini, Giulia Isabella, Sara Ricossa +1
We derive new positivity bounds at finite momentum transfer, assuming a large separation between the mass of the lightest particle in the effective theory and the mass gap …
Classical vs Quantum Eikonal Scattering and its Causal Structure
Brando Bellazzini, Giulia Isabella, Massimiliano Maria Riva
We study the eikonal scattering of two gravitationally interacting bodies, in the regime of large angular momentum and large center of mass energy. We show that eikonal exponentiat…
Gravitational Causality and the Self-Stress of Photons
Brando Bellazzini, Giulia Isabella, Matthew Lewandowski +1
We study causality in gravitational systems beyond the classical limit. Using on-shell methods, we consider the one-loop corrections from charged particles to the photon energy-mom…
On-shell effective theory for higher-spin dark matter
Adam Falkowski, Giulia Isabella, Camila S. Machado
We apply the on-shell amplitude techniques in the domain of dark matter. Without evoking fields and Lagrangians, an effective theory for a massive spin- particle is defined in t…
Matter Coupling in Massive Gravity
Adam Falkowski, Giulia Isabella
We discuss the dRGT massive gravity interacting with spin-0, spin-1/2, or spin-1 matter. The effective theory of a massive spin-2 particle coupled to matter particles is constructe…