^(68)Ge、^(65)Ga及^(67)Ga的高自旋态研究  

Research on High Spin States in ^(68)Ge, ^(65)Ga and ^(67)Ga

作　　者：朱胜江[1] J.H.Hamilton A.V.Ramayya L.Chaturvedi J.Kormicki X.W.Zhao I.Y.Lee N.R.Johnson C.Backtach F.K.McGowan M.L.Halbert J.D.Cole 

机构地区：[1]清华大学现代应用物理系 [2]Physics Department,Vanderbilt University,Nashville,TN 37235,U.S.A [3]Oak Ridge National Laboratory,Oak Ridge,TN 37831, U.S.A [4]INEL,Idaho Falls,ID 83415,U. S. A

出　　处：《高能物理与核物理》1992年第6期539-545,共7页High Energy Physics and Nuclear Physics

摘　　要：用在束γ谱实验技术,对^(68)Ge、^(65)Ga与^(67)Ga的高自族态进行了研究。所用核反应为^(46)Ti(^(25)Mg,xpxn),束流能量为68MeV。在^(68)Ge中,观测到新的8^+以上的多带结构、带间的交叉跃迁及一个新的可能具有大形变的带。新的微观模型(EXCITED FED VAMPIR)的计算结果与实验数据比较得到满意的符合。在^(65)Ga与^(67)Ga中,给出了这两种核的新的能级图,观测到集体性很强的带结构。The high spin states in ^(68)Ge, ^(65)Ga and ^(67)Ga were studied through in-beam gamma- ray spectroscopy experiment. The reaction ^(46)Ti(^(25)Mg, xpxn) was used with beam energy 68 MeV. In ^(68)Ge the new multiplicity of band structures, the crossing transitions among the bands and a new band with possible big diformation were observed. The experiment results agree with a new microscopic model calculation (EXCITED'FED VAMPIR). In ^(65)Ga and ^(67)Ga a few band structures with strong collectivity were observed and the new level schemes were given.

关 键 词：原子核 高自旋态 锗68 镓65 镓67 

分 类 号：O571.22[理学—粒子物理与原子核物理]