| 核子-核子碰撞截面的参数化公式 |
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| 引用本文： | 魏慧玲,于勉,马春旺. 核子-核子碰撞截面的参数化公式[J]. 原子核物理评论, 2010, 27(4): 416-420. DOI: 10.11804/NuclPhysRev.27.04.416 |
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| 作者姓名： | 魏慧玲 于勉 马春旺 |
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| 作者单位： | 1 河南师范大学物理学系, 河南 新乡 4530072 新乡医学院生命科学技术系,河南 新乡 453003 |
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| 基金项目： | 国家自然科学基金，河南省高校科技创新团队资助项目 |
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| 摘 要： | 核子-核子碰撞截面(σNN)是描述原子核反应模型中的重要物理量。 核子-核子碰撞截面包括质子-质子碰撞截面（σpp）、中子-中子碰撞截面（σNN）和中子 质子碰撞截面（σnp）， 它们随着核子能量与核物质密度的改变而变化。人们在目前研究中提出了多种核子-核子碰撞截面关于能量和核物质密度的参数化公式，通过计算12C+12C的完全反应截面，比较了不同入射能量下使用各种核子-核子碰撞截面参数化公式对12C完全反应截面的影响。 The nucleus-nucleus cross sections(σNN) include the proton-proton cross section， neutron-neutron cross section， and neutron-proton cross section. σNN change with the variations of the incident energies and the densities. Some parameterizations of σNNas a function of incident energy and density have been proposed in the theoretical and experimental study of nuclear reactions. Through the calculation of reaction cross sections of 12C+12C at different energies, the effect of different σNN parameterizations in the reaction cross sections of 12 are studied.
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| 关 键 词： | 核子-核子碰撞截面参数化公式 介质中的核子-核子碰撞截面 核反应模 |
| 收稿时间： | 1900-01-01 |
Parameterizations of Nucleus-nucleus Cross Sections |
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| WEI Hui-ling,YU Mian,MA Chun-wang. Parameterizations of Nucleus-nucleus Cross Sections[J]. Nuclear Physics Review, 2010, 27(4): 416-420. DOI: 10.11804/NuclPhysRev.27.04.416 |
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| Authors: | WEI Hui-ling YU Mian MA Chun-wang |
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| Affiliation: | 1 Department of Physics, Henan Normal University, Xinxiang 453007, Henan, China;2 Department of Life Sciences and Technology, Xinxiang Medical University,Xinxiang 453003, Henan, China |
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| Abstract: | The nucleus-nucleus cross sections(σNN) include the proton proton cross section，neutron-neutron cross section， and neutron-proton cross section. σNNchange with the variations of the incident energies and the densities. Some parameterizations of σNN as a function of incident energy and density have been proposed in the theoretical and experimental study of nuclear reactions. Through the calculation of reaction cross sections of 12C+12C at different energies, the effect of different σNN parameterizations in the reaction cross sections of 12 are studied. |
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