【摘要】 本文利用改进的量子分子动力学模型（ＭＱＭＤ）研究中能重离子碰撞中的多重碎裂过程．在ＭＱＭＤ的基础上通过模拟计算发现：ＭＱＭＤ由于考虑了动量相关势和Ｐａｕｌｉ势，极大地改善了多重碎裂产额的计算结果与实验数据的比较．同时研究了二者对碰撞动力学的不同影响．最后，讨论了理论计算与实验结果仍有矛盾的原因，并提出了进一步改进的方案．更多还原

【Abstract】 The collision dynamics and yields of the multifragmentation in intermediate energy heavy ion collisions are simulated within the frame of the modified quantum molecular dynamics(MQMD ).With this new MQMD,it is found that the obvious improvements about the agreements between the experimental data and the simulating results for the fragment production by means of MDI and Pauli potential are achieved.Meanwhile the different influences of MDI and Pauli potential on the collision dynamics of intermediate energy heavy ion collisions are obtained.Finally the possible reasons for the discrepancies between the experimental data and the present simulating results and remedies of these deficiencies are discussed in detail.更多还原