Unitarized one-loop graviton-graviton scattering

In this work we interpret the Einstein-Hilbert (EH) Lagrangian of gravitation as first term a low-energy effective theory similar to those considered in chiral approach hadron physics or electroweak Lagragians describing symmetry breaking sector Standard Model (SM). Starting from one-loop computation elastic graviton-graviton scattering amplitude by Dunbar and Norridge, unitarize IR regularized partial waves using Inverse Amplitude Method (IAM). This method enlarges regime applicability perturbative results higher energies order Plank scale $M_P$ allows for possibility poles second Riemann which have natural interpretation dynamical resonances. look these possible resonances $++++$ $ -- -$ helicity channels $J=0$, $2$ $4$ waves.