α-Particle Transfer Via the (C12,Be8) Reaction: Application to Studies ofO16andNe20

Abstract

By utilizing particle-identification techniques to detect the two breakup $\alpha$ particles from ${}_{}{}^8{}_{}{}^{}\mathrm{Be}$, we have studied the reactions ${}_{}{}^{12}{}_{}{}^{}\mathrm{C}$(${}_{}{}^{12}{}_{}{}^{}\mathrm{C}$, ${}_{}{}^8{}_{}{}^{}\mathrm{Be}$)${}_{}{}^{16}{}_{}{}^{}\mathrm{O}$ and ${}_{}{}^{16}{}_{}{}^{}\mathrm{O}$(${}_{}{}^{12}{}_{}{}^{}\mathrm{C}$, ${}_{}{}^8{}_{}{}^{}\mathrm{Be}$)${}_{}{}^{20}{}_{}{}^{}\mathrm{Ne}$. The (${}_{}{}^{12}{}_{}{}^{}\mathrm{C}$, ${}_{}{}^8{}_{}{}^{}\mathrm{Be}$) reaction strongly populates the positive-parity four-particle, four-hole rotational band of ${}_{}{}^{16}{}_{}{}^{}\mathrm{O}$ based on its 6.05-MeV ($0^{+}$) state, and both the positive- and negative-parity rotational bands of ${}_{}{}^{20}{}_{}{}^{}\mathrm{Ne}$ based on its ground-state ($0^{+}$) and 5.80-MeV ($1^{-}$) state, respectively.