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PIRSA:21040030

A tale of two geometries

APA

Huang, T.C. (2021). A tale of two geometries. Perimeter Institute for Theoretical Physics. https://pirsa.org/21040030

Tzu Chen Huang California Institute of Technology (Caltech)

Talk numberPIRSA:21040030
Source RepositoryPIRSA
Collection

Abstract

It is known that constraints imposed by causality and unitarity of four-particle scattering amplitudes lead to non-trivial requirements on the low energy effective field theory coefficients. We introduce families of linear and nonlinear inequalities resulting from a systematic study of positive geometry structure hidden in those constraints.