Experimental study of the ${}^{17}$F+ ${}^{12}$C fusion reaction and its implications for fusion of proton-halo systems

Abstract

The halo nature of the low-lying $1/2$+ first excited state of the exotic weakly-bound proton drip-line nucleus ${}^{17}$F has long been hypothesized. The structure of such a halo nucleus would imply special nuclear properties including, possibly, an enhancement in its fusion cross section above the barrier. The total fusion cross section of ${}^{17}$F + ${}^{12}$C near the Coulomb barrier was studied using the newly developed "Encore" active-target detector at Florida State University. Total fusion cross sections for the stable counterpart systems ${}^{16}$O + ${}^{12}$C and ${}^{19}$F + ${}^{12}$C were also measured to enable a systematic comparison. No influence of the halo nature of the ${}^{17}$F $1/2$+ first excited state on its fusion excitation function was observed when compared with the stable counterpart systems.

References in corpus (3)

• Fusion and Direct Reactions of Halo Nuclei at Energies around the Coulomb Barrier
• Study of the astrophysically important ${}^{23}\mathrm{Na}(\mathbf{\alpha },\mathbf{p}{)}^{26}\mathrm{Mg}$ and ${}^{23}\mathrm{Na}(\mathbf{\alpha },\mathbf{n}{)}^{26}\mathrm{Al}$ reactions
• Coulomb excitation of unstable nuclei at intermediate energies

Cited by in corpus (3)

• MuSIC@Indiana: an effective tool for accurate measurement of fusion with low-intensity radioactive beams
• Assessing the impact of valence sd neutrons and protons on fusion
• Influence of additional neutrons on the fusion cross-section beyond the N=8 shell