Test of the notch technique for determining the radial sensitivity of the optical model potential  

作　　者：杨磊 林承键 贾会明 徐新星 马南茹 孙立杰 杨峰 张焕乔 刘祖华 王东玺 

机构地区：[1]China Institute of Atomic Energy, Department of Nuclear Physics

出　　处：《Chinese Physics C》2016年第5期63-69,共7页中国物理C（英文版）

基　　金：Supported by National Natural Science Foundation of China(11375268,11475263,U1432246 and U1432127);the National Key Basic Research Program of China(2013CB834404)

摘　　要：Detailed investigations on the notch technique are performed on ideal data generated by the optical model potential parameters extracted from the 16O＋208spb system at the laboratory energy of 129.5 MeV, to study the sensitivities of this technique to the model parameters as well as the experimental data. It is found that for the perturbation parameters, a sufficiently large reduced fraction and an appropriate small perturbation width are necessary to determine the accurate radial sensitivity; while for the potential parameters, almost no dependence was observed. For the experimental measurements, the number of data points has little influence for heavy target systems, and the relative inner information of the nuclear potential can be derived when the measurement is extended to a lower cross section.Detailed investigations on the notch technique are performed on ideal data generated by the optical model potential parameters extracted from the 16O＋208spb system at the laboratory energy of 129.5 MeV, to study the sensitivities of this technique to the model parameters as well as the experimental data. It is found that for the perturbation parameters, a sufficiently large reduced fraction and an appropriate small perturbation width are necessary to determine the accurate radial sensitivity; while for the potential parameters, almost no dependence was observed. For the experimental measurements, the number of data points has little influence for heavy target systems, and the relative inner information of the nuclear potential can be derived when the measurement is extended to a lower cross section.

关 键 词：optical model potential notch technique sensitive region elastic scattering 

分 类 号：O413.1[理学—理论物理]