摘要
利用符合的粒子粒子关联测量,研究了25MeV/u40Ar+197Au反应中不稳定轻核的在平面发射和出平面发射.对于中速的不稳定轻核,观测到在平面发射几率增大,这表明该反应系统中存在旋转效应.该现象随碰撞参数增大更为强烈。
The in plane and out of plane emission of unstable light nuclei was measured in the reaction of 40 Ar+ 197 Au at energy 25MeV/u by means of extensive particle particle correlation. An in plane enhancement is observed for mid rapidity unstable light nuclei, indicating a rotational effect exists in this reaction system. This in plane enhanced emission becomes stronger with increasing of impact parameter, but becomes a little weaker with increasing of energy of the excited state.
出处
《物理学报》
SCIE
EI
CAS
CSCD
北大核心
1996年第9期1438-1443,共6页
Acta Physica Sinica
基金
国家自然科学基金和中国科学院基金