Spin Determination for Resonances Decaying to ExcitedJ=0States

Abstract

The angular distribution of a ($p, p^{\prime }$) resonance reaction leading to an excited $J_f=0\mathrm{}$ target state allows an unambiguous determination of the spin of the resonance. As an example we investigate isobaric analog resonances in ${}_{}{}^{95}{}_{}{}^{}\mathrm{Nb}$ decaying to the 1.30-MeV $0^{+}$ state in ${}_{}{}^{94}{}_{}{}^{}\mathrm{Zr}$ and discuss the weak-coupling nature of their parent states in ${}_{}{}^{95}{}_{}{}^{}\mathrm{Zr}$, based upon the spin assignments made.