Effect of the deuteronDstate on distorted-wave impulse-approximation calculations of (p, π) reactions

We explore the effects of including the $D$-state part of the deuteron wave function in a previous distorted-wave impulse-approximation calculation applied to the reaction $\mathrm{pd}\to t\pi$ in the resonance region. We find that the $D$-state component tends to increase the cross section at large angles by amounts ranging from 15% at 470 MeV to a factor of 3 at 1050 MeV. Results are however sensitive to the short range details of both $S$ and $D$ parts of the deuteron wave function.