Low-energy $S$-wave scattering of $\text{H}+e^{-}$ by a Lagrange-mesh method

Jean Servais, Jérémy Dohet-Eraly

A method combining the Lagrange-mesh and the complex Kohn variational methods is developed for computing the $\mathcal{S}$ matrix of a 2$+$1 elastic scattering in the frame of thre…