Effects of Distorted Wave on Proton Elastic Scattering from Light Nuclei at 200 MeV  

作　　者：顾柏平 毛英臣 

机构地区：[1]Department of Physics, Nanjing University, Nanjing 210093 [2]Department of Mathematics and Physics, Nanjing University of TCM, Nanjing 210029

出　　处：《Chinese Physics Letters》2006年第11期2936-2939,共4页中国物理快报（英文版）

基　　金：Supported by the National Natural Science Foundation of China with Grant No 10125521, the National Major State Basic Research and Development of China under Grant No G2000077400, the Knowledge Innovation Project of Chinese Academy of Sciences under Grant No KJCX2-SW-N02, and the Research Fund of Higher Education of China under Grant No 20010284036.

摘　　要：The distorted wave is introduced into the relativistic impulse approximation to generate the Dirac optical potentials for proton elastic scattering. Those potentials, produced by folding the target ground state wavefunction with the free nucleon-nucleon interactions, are used to reevaluate scattering observables, such as differential cross section, analysing power and spin rotation function, for proton elastic scattering from ^12C and ^16O at Elab = 200 MeV, respectively. The inclusion of the distorted wave in the original relativistic impulse approximation has brought out better results of the observables, especially at small scattering angles.The distorted wave is introduced into the relativistic impulse approximation to generate the Dirac optical potentials for proton elastic scattering. Those potentials, produced by folding the target ground state wavefunction with the free nucleon-nucleon interactions, are used to reevaluate scattering observables, such as differential cross section, analysing power and spin rotation function, for proton elastic scattering from ^12C and ^16O at Elab = 200 MeV, respectively. The inclusion of the distorted wave in the original relativistic impulse approximation has brought out better results of the observables, especially at small scattering angles.

关 键 词：RELATIVISTIC IMPULSE APPROXIMATION MEAN-FIELD-THEORY FINITE NUCLEI DENSITY-DEPENDENCE HALO NEUTRON MATTER MODEL RADII STATE 

分 类 号：O57[理学—粒子物理与原子核物理]