Roper excitation in $\vec{p}+\alpha \to \vec{p}+\alpha +X$ reactions

S. Hirenzaki, A. D. Bacher, S. E. Vigdor

We calculate differential cross sections and the spin transfer coefficient $D_{nn}$ in the $\vec{p}+\alpha \to \vec{p}+\alpha +{\pi }^0$ reaction for proton bombarding energies from 1 to 10 GeV and…