高能物理与核物理
高能物理與覈物理
고능물리여핵물리
HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS
2006年
8期
740-744
,共5页
陈永静%朱胜江%J.H. Hamilton%A.V. Ramayya%J.K. Hwang%Y. X. Luo%J.O. Rasmussen%车兴来%丁怀博%李明亮
陳永靜%硃勝江%J.H. Hamilton%A.V. Ramayya%J.K. Hwang%Y. X. Luo%J.O. Rasmussen%車興來%丁懷博%李明亮
진영정%주성강%J.H. Hamilton%A.V. Ramayya%J.K. Hwang%Y. X. Luo%J.O. Rasmussen%차흥래%정부박%리명량
高自旋态%八级形变带%准γ带%壳模型
高自鏇態%八級形變帶%準γ帶%殼模型
고자선태%팔급형변대%준γ대%각모형
high spin state%octupole deformed band%quasi-γ band%shell model
通过测量252Cf自发裂变所产生的瞬发γ射线,对146Ce核的高自旋结构进行了重新研究,结果更新了以前报道的能级纲图,把八级形变集体带扩展到更高的自旋,并且重新构建了可能的准γ带结构.此外,用反射不对称壳模型(RASM)对146Ce核的八级形变带进行了计算,低自旋处的计算结果与实验数据符合得很好.
通過測量252Cf自髮裂變所產生的瞬髮γ射線,對146Ce覈的高自鏇結構進行瞭重新研究,結果更新瞭以前報道的能級綱圖,把八級形變集體帶擴展到更高的自鏇,併且重新構建瞭可能的準γ帶結構.此外,用反射不對稱殼模型(RASM)對146Ce覈的八級形變帶進行瞭計算,低自鏇處的計算結果與實驗數據符閤得很好.
통과측량252Cf자발렬변소산생적순발γ사선,대146Ce핵적고자선결구진행료중신연구,결과경신료이전보도적능급강도,파팔급형변집체대확전도경고적자선,병차중신구건료가능적준γ대결구.차외,용반사불대칭각모형(RASM)대146Ce핵적팔급형변대진행료계산,저자선처적계산결과여실험수거부합득흔호.
High-spin structures in 146Ce nucleus have been re-investigated by measuring the prompt γ rays from spontaneous fission of 252Cf. The previously reported level scheme of 146Ce has been updated. The octupole deformed collective bands have been extended up to higher spin states. A possible quasi-γ band structure was examined and reconstructed according to our data analysis. In addition, the reflection asymmetric shell model was applied to describe the octupole deformed bands in 146Ce, and the calculated results are in good agreement with the experimental data at lower spins.
