4 papers · 1 filter
The Classical Gravitational Impulse at High Energies
Michael Saavedra
We compute the gravitational impulse for two classical massive scalars in the ultrarelativistic limit to all orders in Newton's constant at fixed to .…
Analytic structure of the high-energy gravitational amplitude: multi-H diagrams and classical 5PM logarithms
Francesco Alessio, Vittorio Del Duca, Riccardo Gonzo +3
We investigate the high-energy, small-angle limit of two-body gravitational scattering. Using power counting arguments and dispersion relations in an effective field theory for the…
A Systematic Lagrangian Formulation for Quantum and Classical Gravity at High Energies
Ira Z. Rothstein, Michael Saavedra
We derive a systematic Lagrangian approach for quantum gravity in the super-Planckian limit where . The action can be used to calculate to arbitrary accuracy in…
Extracting the Asymptotic Behavior of S-matrix Elements from their Phases
Ira Z. Rothstein, Michael Saavedra
The asymptotic kinematic limits of S-matrices are dominated by large logarithms which, roughly speaking, fall into two categories: those which are controlled by a renormalization g…