| 核遮蔽效应的空间性 |
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| 引用本文： | 谢革英,刘植凤,胡金江. 核遮蔽效应的空间性[J]. 河北建筑工程学院学报, 2007, 25(3): 131-132,135 |
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| 作者姓名： | 谢革英 刘植凤 胡金江 |
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| 作者单位： | 河北建筑工程学院数理系,张家口市,075000;石家庄经济学院地动所 |
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| 摘 要： | 通过p-A碰撞的核Drell-Yan过程研究了核遮蔽效应及其空间相关性.利用空间依赖的部分子分布函数,计算了能量为800GeV/质子打击Au核的Drell-Yan过程与p-p碰撞Drell-Yan过程的微分截面比.计算结果与未来精确测量p-A碰撞核Drell-Yan过程的实验数据比较,能定量的验证部分子分布函数的空间依赖性.
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| 关 键 词： | 核遮蔽效应因子 核Drell-Yan过程 部分子分布的空间依赖性 |
| 修稿时间： | 2006-11-06 |
The Spatial Dependence of Nuclear Effect |
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| Xie Geying,Liu Zhifeng,Hu Jinjiang. The Spatial Dependence of Nuclear Effect[J]. Journal of Hebei Institute of Architectural Engineering, 2007, 25(3): 131-132,135 |
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| Authors: | Xie Geying Liu Zhifeng Hu Jinjiang |
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| Affiliation: | Xie Geying1 Liu Zhifeng2 Hu Jinjiang1 1.Hebei Institute of Architecture and Civil Engineering 2.Shijiazhuang Economy University |
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| Abstract: | In this paper, the nuclear shadowing effect and its lsition dependence is studied by the p-A Drell- Yan process. Considering the spatial dependence of parton distribution functions, we calculated the Drell- Yan cross-section ratios for an 800GeV proton beam incident on p and Au. Comparing our result with the future precise data measured in Drell-Yan process, the spatial dependent parton distribution functions can be examined. |
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| Keywords: | the nuclear shadowing effect parameter the nuclear Drell-Yan process the spatial dependence of parton distribution functions |
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