摘要
用轴对称粒子 -转子理论模型计算奇奇核84Y低自旋下的能谱 ,研究了能谱的最近邻能级间距分布和能谱刚性度随自旋的变化规律 ,并对该模型中特定形式的质子 -中子相互作用和科氏力作用对能谱统计特征的影响作了分析 .
The energy levels of odd-odd nucleus 84 Y at low spins were calculated by using the axially symmetric particles plus rotor model. In order to study the statistical properties of the energy levels, the two standard tests of Random-Matrix Theory such as the nearest-neighbor level spacings and the spectral rigidity were adopted. It is shown that the chaotic degree of the energy levels initially increases with increasing spin and reaches a maximum around I=10, and then decreases for spins above I≈10. On the other hand, the proton-neutron interaction makes the energy levels slightly regular/ordered. However, the Coriolis force which makes the energy levels chaotic plays a major role in the spectral structure of the odd-odd nucleus 84 Y.
出处
《高能物理与核物理》
EI
CSCD
北大核心
2001年第8期736-742,共7页
High Energy Physics and Nuclear Physics
基金
国家自然科学基金 ( 1 98750 4 0 )资助&&
关键词
粒子-转子模型
奇奇核
能谱统计
邻能级间距
能谱刚性率
particles plus rotor model, odd-odd nucleus, level statistics, nearest-neighbor level spacing, spectral rigidity
