小变形原子核中的相干效应

本文考察了在转动的小变形核力场中运动的核子-核子对、核子-空穴对中的相干效应。计算了O¹⁸最低的偶宇称态0⁺,2⁺,4⁺和O¹⁶最低的奇宇称态0^-,1^-,2^-,3^-波函数;和壳模型经典方法计算出的结果作了比较,二者相当一致。得出的初步结论如下:核力主要是P₂力再加上一定成分具有相干性质的力。前者与转动的变形场等效。不但对于0⁺,2⁺,4⁺,3^-态,而且对于1^-,2^-态,附加的相干成分都很重要;它们的内部态混合组态是比较多的,粒子-粒子之间、或粒子-空穴之间的关联都比较显著。只有0^-态的内部态是纯组态。

COHERENT EFFECT IN WEAK-DEFORMED NUCLEAR FIELD

The coherent effect inherent in particle-particle pair or particle-hole pair which is moving in a rotating weak-deformed nuclear field has been investigated. The low-lying even-parity states 0⁺, 2⁺, 4⁺, of O¹⁸ and odd-parity states 0^-, 1^-, 2^-, 3^-, of O¹⁶ have been calculated accordingly. Comparison with the corresponding wave-functions by the shell model classical calculation shows that there is much similarity between them. Some preliminary conclusions are obtained as follows: The main components in nuclear force are the P₂ force plus certain other force with coherent property. The former is equivalent to a rotating deformed field, while the latter is essential in all calculated states except for the 0^- state only.