The $p(d,d^{\prime})$ Reaction and the $\sigma NN^{\ast}(1440)$ Coupling Constant

Abstract

We make use of a $NN \to NN^*(1440)$ transition potential derived from a quark-model in a parameter-free way, to study the Roper excitation diagram contributing to the reaction $p(d,d^{\prime})$. We also determine the $\pi NN^*(1440)$ and $\sigma NN^*(1440)$ coupling constants.