Abstract:
17F is a proton drip-line nucleus, which is an unstable weakly bound nucleus. As a proton drip-line nucleus, the proton separation energy of
17F is merely 601 keV. Its structure can be described as
16O+p. The first excited state of
17F was predicted to present a proton-halo structure. The experimental study of
17F is of great significance for further understanding the reaction mechanism of proton-rich weakly bound nuclei. In this work, the reaction mechanisms of
17F+
58Ni at the energy near the Coulomb barrier were investigated with the beam provided by the RIBLL1 terminal in Lanzhou.
17F and
16O were completely identified by using a self-designed telescope array consisting of ionization chambers and silicon detectors. The quasi-elastic scattering angular distribution of
17F+
58Ni at
Elab=63.0 MeV was obtained. Further theoretical calculations were carried out by continuum-discretized coupled-channels method, which can reproduce the experimental data reasonably well. Moreover, there is no significance difference between the calculations with and without couplings to the continuum states, indicating that the coupling effect on the continuum states of
17F is not strong for the elastic scattering channel.