A huge surge of experimental data coming from the LHC and the new generation of gravitational detectors provides a unique opportunity to test the Standard Model of particle physics and Einstein’s theory of gravity. For successful implementation of this program, we need powerful methods for deriving high precision theory predictions for the revelant physical observables.

This project ** Observables** supported by the French Agence nationale pour la recherche aims to develop new techniques for
computing scattering amplitudes with a large number of particles involved in perturbation theory in both gauge theory and classical and quantum gravitational theories

A focus for will be to calculate three different classes of observables:

- differential cross-sections at large multiplicities relevant to LHC physics
- energy correlations allowing us to understand the properties of jets in QCD
- gravitational observables for the analysis of gravitational waves emitted from binary systems.

We will build on recent advances in the field of “Amplitudes” and use supersymmetric Yang-Mills theory, integrability, algebraic-geometric methods as applied to gauge theory observables

Our goal is to obtain new results for the above mentioned observables and uncover hidden structures in gauge theories and gravity.