低能反质子与原子核散射  

Antiproton-nucleus scattering at low energies

作　　者：李扬国[1] 

机构地区：[1]汕头大学

出　　处：《汕头大学学报（自然科学版）》1995年第1期1-9,共9页Journal of Shantou University：Natural Science Edition

基　　金：国家自然科学基金

摘　　要：本文概述了能量从２０至１８０ＭｅＶ区域反质子与原子核的散射现象．从多次散射的理论框架，获得反质子的光学势，这一光学势能很好地描述从轻核至重核在整个能区的弹性散射实验．同时从Ｇｌａｕｂｅｒ多次散射理论，也获得与弹性散射实验相一致的结果．对于非弹性散射，ＤＷＩＡ的计算结果也与实验一致．这些表明在低能区反质子与原子核的散射是多次散射为主．in this paper, we summarize the antiproton-nucleus scattering at energies ranging from 20 to 180 MeV. From the framework of the multiple scattering theory, we obtain the antiproton-nucleus optical potential that can best describe the experimental elastic scattering data. At the same time,Glaubers multiple scattering theory also fits well with the experimental elastic scattering data. In the case of inelastic scattering, the DWIA calculation results are consistent with the experimental data too. All of these show that the antiproton-nucleus scattering at low energies are multiple scattering dominantly.

关 键 词：反质子 弹性散射 光学势 DWIA 原子核 散射 

分 类 号：O571.418[理学—粒子物理与原子核物理]