| 中能重离子碰撞中线动量耗散动力学 |
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| 引用本文： | 黄小临,江栋兴,叶沿林,刘洪涛,卢希庭. 中能重离子碰撞中线动量耗散动力学[J]. 中国物理 C, 1994, 18(2): 154-159 |
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| 作者姓名： | 黄小临 江栋兴 叶沿林 刘洪涛 卢希庭 |
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| 作者单位： | 北京大学技术物理系 |
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| 摘 要： | 用BUU方程研究了50MeV/u 12C轰击209Bi引起反应中线动量耗散的动力学过程.对于周边碰撞,发生类似于低能区的深部非弹反应过程,说明平均场仍有很大影响;对于中心碰撞,预平衡粒子发射妨碍了完全线动量转移过程的发生.与实验测得的线动量转移分布比较,说明BUU方程的计算结果具有相当合理性.
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| 关 键 词： | 线动量耗散 深部非弹反应 一体耗散 单粒子密度分布 两体耗散 泡利阻塞因子 |
The Dynamics of Linear Momentum Dissipation in the Intermediate Energy Heavy Ion Collisions |
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| Huang Xiaolin, Jiang Dongxing, Ye Yanlin, Liu Hongtao, Lu Xiting. The Dynamics of Linear Momentum Dissipation in the Intermediate Energy Heavy Ion Collisions[J]. High Energy Physics and Nuclear Physics, 1994, 18(2): 154-159 |
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| Authors: | Huang Xiaolin Jiang Dongxing Ye Yanlin Liu Hongtao Lu Xiting |
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| Abstract: | The dynamics of linear momentum dissipation in the reaction of 50MeV/u 12C with 209Bi has been studied within the BUU approach. For the peripheral collision,deep inelastic reaction process similar to what observed at lower energy region seems to persist, indicating an important effect of the mean field. For the central collision, complete momentum transfer is inhibited from the preequilibrium particle emission. The predictions of BUU equation reasonablily agree with the experimental data. |
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| Keywords: | Linear Momentum Dissipation Deep Inelastic Reaction One Body Dissipation Single Particle Density Distribution Two Body Dissipation Pauli Blocking factor |
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