2 papers
hep-th2024
Bootstrapping Extremal Scalar Amplitudes With and Without Supersymmetry
Justin Berman, Henriette Elvang, Nicholas Geiser +1
We re-examine positivity bounds on the scattering of identical massless real scalars with a novel perspective on how these bounds can be used to constrain the spectrum of U…
hep-th2024
Analytic bootstrap bounds on masses and spins in gravitational and non-gravitational scalar theories
Justin Berman, Nicholas Geiser
We derive analytic constraints on the weakly-coupled spectrum of theories with a massless scalar under the standard assumptions of the S-matrix bootstrap program. These bootstrap b…