The Study Of The α+¹⁶O Model Of ²⁰Ne By Means Of P+²⁰Ne And π+²⁰Ne Elastic And Inelastic Scattering

Intermediate and high energy nucleus scattering is one of the important methods to study the nucleus structure. In this work, we use the ground state form factor and the 2+(1.63MeV) state, 4+(4.25MeV) state transition form factor in the α+l6O structure model of 20Ne to calculate the differential cross-section of the p+ 20Ne and π+ 20Ne Elastic and Inelastic Scattering at the laboratory incident energy Tp=800MeV, Tn=180MeV in the framework of Glauber multiple scattering theory. The influence of different form factors on the calculated scattering results of p+ 20Ne and π+ 20Ne Elastic and Inelastic Scattering were compared.The tendency of oscillation phenomenon with the angle between the theoretical results and experimental are basically identical, the positions of the peaks and dips can be well described. These calculations provide support to the α+16O structure model of 20Ne nucleus for 2+(1.63MeV)state and 4+ (4.25MeV) state.B.Buck et.al. have obtained the relative motion wave functions for the ground state and excited states of 20Ne in α+16O structure model by solving Schrodinger equation. Using these wave functions, we have calculated the ground state form factor, the 2+(1.63MeV) state, and 4+(4.25MeV) state transition form factors. The results show that the ground state form factor is in well agreement with the experimental data, but the transition form factors for 2+ and 4+states are not well in agreement with the experimental data. The above obtained form factors, have been used to calculate the differential cross-section of the p+ 20Ne and π+20 Ne elastic and inelastic Scattering under the framework of Glauber multiple scattering theory. Good result for the p+ 20Ne elastic scattering can be obtained, but for the inelastic scattering of 2+ and 4+ states, the calculations are in poor agreement with the experimental data. We further our research on the 2+ and 4+ excited state transition form factors by using the relative wave functions in parametric forms which can get better fits to the experimental form factors. The differential cross-section of the p+ 20Ne and π+ 20Ne inelastic scattering are calculated in the framework of Glauber multiple scattering theory. The results show that the calculations for the 2+ state inelastic scattering are in good accord with experimental data. But for the 4+ state, the results still have a large deviation to the data. Then, we do further more investigation to the 2+ and 4+ state transition form factors with different forms and used to calculate the differential cross-section for p+ 20Ne and π+ 20Ne Inelastic Scattering. The theoretic calculated results are in consistent with the experimental data for the tendency of of oscillation phenomenon with the angle. But value agreement with the experimental data have not been obviously improved than before. The excited states transition form factors of the α+16O cluster structure of 20Ne should be further studied by more different methods.