| Gluon saturation and net-proton spectra in relativistic nucleus-nucleus collisions |
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| 作者姓名： | 王宏民 侯召宇 王秀庭 孙献静 |
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| 作者单位： | 1. Physics Department, Academy of Armored Forces Engineering of PLA, Beijing 100072, China;;2. Physics Graduate School, Shijiazhuang Railway Institute, Shijiazhuang 050043, China;;3. Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China |
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| 基金项目： | Supported by Natural Science Foundation of Hebei Province (A2008000421) |
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| 摘 要： | By means of the AKK08 fragmentation function, the net-proton transverse momentum (pT) spectra in A+A collisions are studied with two phenomenological models based on the Color Glass Condensate formalism. After a χ2 analysis of the experimental data from BRAHMS, the normalization constant C is extracted at RHIC energies of √sNN=62.4 and 200 GeV, and the theoretical results of the net-proton pT spectra at selected rapidities are also given. It is shown that the theoretical results are in good agreement with the experimental data. Finally, assuming the constant C should have an exponent dependence of √sNN, we also predict the theoretical results of net-proton pT spectra at LHC energies of √sNN=2.76, 3.94, and 5.52 TeV.
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| 关 键 词： | 核碰撞 质子 相对论 饱和度 胶子 实验数据 能量提取 碎裂函数 |
| 收稿时间： | 2010-6-23 |
| 修稿时间： | 2010-6-12 |
Gluon saturation and net-proton spectra in relativistic nucleus-nucleus collisions |
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| WANG Hong-Min, HOU Zhao-Yu WANG Xiu-Ting SUN Xian-Jing Physics.Gluon saturation and net-proton spectra in relativistic nucleus-nucleus collisions[J].High Energy Physics and Nuclear Physics,2011,35(3):255-258. |
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| Authors: | WANG Hong-Min HOU Zhao-Yu WANG Xiu-Ting SUN Xian-Jing Physics |
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| Institution: | WANG Hong-Min1,1) HOU Zhao-Yu2 WANG Xiu-Ting1 SUN Xian-Jing3 1 Physics Department,Academy of Armored Forces Engineering of PLA,Beijing 100072,China 2 Physics Graduate School,Shijiazhuang Railway Institute,Shijiazhuang 050043,China 3 Institute of High Energy Physics,Chinese Academy of Sciences,Beijing 100049,China |
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| Abstract: | |
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| Keywords: | relativistic heavy-ion collisions gluon saturation net-proton spectra |
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