在Feshbach-Kerman-Koonin多步理论中P及Q空间的跃迁  

Transition between P and Q Spaces in Feshbach-Kerman-Koonin Theory

作　　者：苏宗涤[1] 阿不都许库尔 李保现[1] 曹天光[1] 王书暖[1] 刘建峰[2] 黄忠甫[3] 朱耀银[4] 李支文[4] 张本爱[5] 

机构地区：[1]中国原子能科学研究院,北京102413 [2]郑州大学物理系,郑州450004 [3]广西大学物理系,南宁530004 [4]吉林大学物理系,长春130023 [5]北京应用物理与计算数学研究所,北京100088

出　　处：《高能物理与核物理》2005年第9期862-865,共4页High Energy Physics and Nuclear Physics

基　　金：国家自然科学基金(19975072)中国工程物理研究院基金(97021)资助~~

摘　　要：存在直接作用时,在哈密顿量中将包括非对角元,并导致Feshbach,Kerman和Koonin预平衡反应多步复合理论中P和Q空间的耦合,得到了理论上更严格的Feshbach,Kerman和Koonin预平衡反应多步复合理论与复合核反应Hauser-Feshbach理论的统一表示,也改进了与实验结果的符合.The off-diagonal components of Hamiltonian was considered in the Feshbach-Kerman-Koonin multi-step compound theory （FKK-MSC） of the pre-equilibrium reaction to induce the coupling between P and Q spaces in addition to the direct and the multi-step direct reactions. The transition from P to Q chain was introduced in an improved FKK-MSC formula, which can give a unified expression for FKK-MSC theory of pre-equilibrium reaction and Hauser-Feshbach model of the compound nucleus reaction （CN）. The FKK-MSC theory was further refined. The calculated results shows that after considered the transition from P to Q chain, the FKK-MSC cross sections become smaller and the CN cross sections become greater than former analyses and they give a good agreement with the experimental results.

关 键 词：预平衡反应 多步复合理论 P和Q空间的跃迁 Q空间 KERMAN 跃迁 非对角元 哈密顿量 核反应 

分 类 号：O571.4[理学—粒子物理与原子核物理] O189.11[理学—物理]