48 citations · 102 across the 4 of their papers we have counts for
4 papers
The Stringy S-matrix Bootstrap: Maximal Spin and Superpolynomial Softness
Kelian Häring, Alexander Zhiboedov
We explore the space of meromorphic amplitudes with extra constraints coming from the shape of the leading Regge trajectory. This information comes in two guises: it bounds the max…
Bounds on scattering of neutral Goldstones
Francesca Acanfora, Andrea Guerrieri, Kelian Häring +1
We study the space of scattering amplitudes of neutral Goldstone bosons in four space-time dimensions. We establish universal bounds on the first two non-universal Wilson…
Bounds on photon scattering
Kelian Häring, Aditya Hebbar, Denis Karateev +2
We study 2-to-2 scattering amplitudes of massless spin one particles in space-time dimensions, like real world photons. We define a set of non-perturbative observables (Wilso…
Gravitational Regge bounds
Kelian Häring, Alexander Zhiboedov
We review the basic assumptions and spell out the detailed arguments that lead to the bound on the Regge growth of gravitational scattering amplitudes. The minimal extra ingredient…