摘要
本文用相对论Brueckner-Bethe-Goldstone(RBBG)方程研究核子-核的相对论微观光学势。核子的复有效质量是通过入射能量为200MeV的质子-^(40)Ca散射数据来确定,由此进一步研究了质子对不同靶核:^(16)O,^(40)Ca,^(90)Zr,^(208)Pb能量范围从160—800MeV的相对论微观光学位。我们用这种微观光学位研究了入射能量为200MeV质子与^(40)Ca的弹性散射,并与唯象相对论光学位计算得到的截面,自旋可观测量进行了比较。
Relativistic microscopic ootical potential of nucleon-nucleus is derived from the relativistic Brueckner-Bethe-Goldstone (RBBG) equation. The complex effective mass of a nucleon is deter- mined by a fit to 200MeV pp-^(40)Ca scattering data. The relativistic microscopic optical potentials with this effective mass are obtained from RBBG for p-^(16)O, ^(40)Ca, ^(90)Zr and ^(208)Pb scattering in energy range from 160 to 800MeV. The microscopic optical potential is used to study the pro- ton-^(40)Ca scattering problem at 200MeV. The results, such as defferential cross section, analy- zing power and spin rotation function are compared with those calculated from phenomenolo- gical relativistic optical potential.
出处
《高能物理与核物理》
CSCD
北大核心
1992年第2期123-130,共8页
High Energy Physics and Nuclear Physics
基金
国家自然科学基金
