Speaker
Luigi Carlo Bresciani
(University of Padova & INFN-PD)
Description
We develop a formalism based on spinor-helicity techniques to generalize the formulation of perturbative unitarity bounds. We discuss unitarity bounds for $N \to M$ (with $N, M \geq 2$) scattering processes, relevant for high-energy future colliders, and spin-2 or higher-spin theories, relevant for effective field theories of gravity, that are not approachable by standard methods. As a byproduct of our analysis, we emphasize the power and complementarity of positivity and perturbative unitarity bounds to constrain the parameter space of effective field theories.
Primary authors
Gabriele Levati
(ITP, University of Bern)
Luigi Carlo Bresciani
(University of Padova & INFN-PD)
Paride Paradisi
(Padova U. and INFN)
