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Bibliographic Details
Main Authors: Bresciani, Luigi C., Levati, Gabriele, Paradisi, Paride
Format: Preprint
Published: 2025
Subjects:
Online Access:https://arxiv.org/abs/2504.12855
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Table of Contents:
  • We develop a formalism, based on spinor-helicity techniques, to generalize the formulation of partial wave 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. Moreover, we emphasize the power and complementarity of positivity and partial wave unitarity bounds to constrain the parameter space of effective field theories.