| 利用中-质微分流探测对称能的高密行为 |
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| 引用本文： | 张芳,左维,雍高产.利用中-质微分流探测对称能的高密行为[J].物理学报,2006,55(11):5769-5773. |
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| 作者姓名： | 张芳 左维 雍高产 |
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| 作者单位： | (1)兰州大学物理与技术科学学院，兰州 730000; (2)中国科学院近代物理研究所,兰州 730000；中国科学院研究生院,北京 100049 |
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| 基金项目： | 国家自然科学基金;中国科学院知识创新工程项目;国家重点基础研究发展计划(973计划);科技部科技专项基金 |
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| 摘 要： | 基于同位旋和动量依赖的强子输运模型IBUU04，研究了132Sn+124Sn在三种不同碰撞能量、两种不同对称能作用下，中-质微分流随快度的变化关系. 发现中-质微分流的强度随碰撞能量的增大而增强. 在碰撞能量为400 MeV每核子时，中-质微分流对对称能最为敏感.
关键词：
重离子碰撞
中-质微分流
对称能
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| 关 键 词： | 重离子碰撞 中-质微分流 对称能 |
| 文章编号： | 1000-3290/2006/55(11)/5769-05 |
| 收稿时间： | 01 16 2006 12:00AM |
| 修稿时间： | 2006-01-162006-03-31 |
Probing the high density behavior of the symmetry energy by using the neutron-proton differential flow |
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| Zhang Fang,Zuo Wei,Yong Gao-Chan.Probing the high density behavior of the symmetry energy by using the neutron-proton differential flow[J].Acta Physica Sinica,2006,55(11):5769-5773. |
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| Authors: | Zhang Fang Zuo Wei Yong Gao-Chan |
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| Institution: | 1. Department of Physics and Technology, Lanzhou University, Lanzhou 730000, China; 2. Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China; 3. Graduate School, Chinese Academy of Sciences, Belling 100049, China |
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| Abstract: | Based on the isospin-and momentum-dependent transport model IBUU04,we investigated the neutron-proton differential flow in the 132Sn+ 124Sn mid-central collisions at beam energies of 400MeV/A,600MeV/A and 800MeV/A by adopting two different symmetry energies.It was found that the neutron-proton differential flow as a function of rapidity is very sensitive to the density dependence of symmetry energy,especially at incident energies around 400MeV/A. |
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| Keywords: | heavy ion collisions neutron-proton differential flow symmetry energy |
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