3 years ago

# Elastic $I=3/2$ $p$-wave nucleon-pion scattering amplitude and the $\mathrm{Δ}(1232)$ resonance from ${N}_{f}=2+1$ lattice QCD

Colin Morningstar, Ben Hörz, Christian Walther Andersen, John Bulava
We present the first direct determination of meson-baryon resonance parameters from a scattering amplitude calculated using lattice QCD. In particular, we calculate the elastic $I=3/2$, $p$-wave nucleon-pion amplitude on a single ensemble of ${N}_{\mathrm{f}}=2+1$ Wilson-clover fermions with \${m}_{π...