摘要
在相对论ＢＵＵ方程框架内给出计算核内△吸收截面的严格公式．研究了核内△Ｎ→ＮＮ散射截面的介质效应，发现阈能附近的△吸收截面在介质中被压低．数值结果与ＴＡＰＳ实验组的最新实验结果符合得很好．
An exact expression for calculating the in-medium A absorption cross section is obtained within the framework of the self-consistent relativistic BUU approach. The medium effects on the △N→ NN cross section is investigated, and it is found that the effective cross sation is suppressed in the medium near the threshold energy. The results are in a good agreement with the most recent experimental data of the TAPS collaboration.
出处
《高能物理与核物理》
CSCD
北大核心
1996年第11期1053-1055,共3页
High Energy Physics and Nuclear Physics
基金
国家自然科学基金
核工业部基金
中国博士后基金
关键词
相对论BUU
介质效应
核内Δ吸收截面
relativistic BUU, medium effects, in-medium △ absorption cross section.
