Scattering from generalised lattice $\phi^4$ theory
May 16, 2022
We numerically investigate different techniques to extract scattering amplitudes from a Euclidean Lattice 𝜙4 theory with two fields having different masses. We present an exploratory study of a recently proposed method by Bruno and Hansen for extracting the scattering length from a four-point function (cf. 10.1007/JHEP06(2021)043) and a study of the two- and three-particle quantization condition.
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