QMD模型对^（11）Li引起反应的研究  

Study of ￣(11)Li-Induced Reactions via QMD Model

作　　者：张晓东[1] 葛凌霄[1] 

机构地区：[1]中国科学院近代物理研究所

出　　处：《高能物理与核物理》1996年第3期270-276,共7页High Energy Physics and Nuclear Physics

基　　金：国家自然科学基金;中科院LWTZ-1298经费资助

摘　　要：将能量和同位旋相关的核子－核子碰撞截面引入ＱＭＤ模型中，并利用壳模型中简谐振子位的密度分布，抽样出稳定的１１Ｌｉ核．仔细研究了１１Ｌｉ＋１２Ｃ反应的总截面．同Ｃｕｇｎｏｎ参数化计算结果进行比较发现，在中低能区，引起反应总截面增大的主要原因是，该能区核子－核子碰撞截面增大、反应时间尺度增长以及Ｐａｕｌｉ阻塞效应减小．The energy and isospin dependent nucleon-nucleon cross section is incorporated in the QMD model. The numerical stable 11Li nucleus is sampled by using the harmonic oscillator type density. The total reation cross section of 11Li+12C is studied in detail and compacts with the results calculated by using the Cugnon parameterization nucleon-nucleon cross section. It is revealed that the increase of total reaction cross section 11Li+12C in low and medium energy region is resulted from the increase of elementary nucleon-nucleon cross section and the time scale, and from the decrease of the Pauli Blocking effect.

关 键 词：奇异核 总截面 核子-核子 碰撞截面 

分 类 号：O571.4[理学—粒子物理与原子核物理]