Elastic Scattering Of The Nucleus ~9C

In this thesis,the research method of elastic scattering is used to investigate the weakly-binding nuclear 9C.Studies show that the structure of the 9C nucleus has the characteristics of the halo nucleus.At present,the structure of the weakly-binding nu-clear 9C is still not clear.Due to the loose structure of 9C.its surface nucleons are very sensitive while interacting with other nuclei,it consists with the method of elastic scat-tering to study the characteristics of nucleus.Hence,the method of elastic scattering is used to analyze thG experimental data of the 9C nucleus,the distribution of the ratio cross section of the 9C nucleus(the ratio of the elastic scattering cross section to the Rutherford cross section)is obtained.The characteristic of the ratio distribution of the 9C nuclei shows that the Coulomb rainbow is still very significant,which is completely different from that of the neutron rich weakly-bounded exotic nucleus.In this case,the optical model of single fold potential,is adopted to fit the experimental data,and the CDCC model is used to calculate the coupling of the breakup channel to the elastic scat-tering channel.The results show that the experimental data can be well described by the optical model with the single folding potential.Without the Coulomb potential and centrifugal potential of the valence protons,the results calculated by the CDCC model are in good agreement with the experimental data.However,after taking the Coulomb potential and the centrifugal potential of the nuclear valence proton into account,the simulated results based on the CDCC indicate that the characteristics are similar with that of the neutron rich halo nucleus,the Coulomb rainbow is strongly suppressed.It proves that the distribution of the valence protons of the 9C nuclear is significant af-fected by the Coulomb potential and the centrifugal potential.The experimental results demonstrate that the 9C nuclear is composed of one core and some valence protons,however,further experiments with high precision are still needed to verify this kind of structure.