| Transverse momentum spectra in high-energy nucleus-nucleus, proton-nucleus and proton-proton collisions |
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| 作者姓名： | 谢文杰 |
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| 作者单位： | Department of Physics, Yuncheng University, Yuncheng 044000, China |
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| 基金项目： | Supported by National Natural Science Foundation of China(10975095); Natural Science Foundation of Shanxi Province(2007011005) |
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| 摘 要： | The transverse momentum distributions of final-state particles produced in nucleus-nucleus (AA), proton-nucleus (pA), and proton-proton (pp) collisions at high energies are investigated using a multisource ideal gas model. Our calculated results show that the contribution of hard emission can be neglected in the study of transverse momentum spectra of charged pions and kaons produced in Cu-Cu collisions at √sNN=22.5 GeV. And if we consider the contribution of hard emission, the transverse momentum spectra of p and p produced in Cu-Cu collisions at √sNN=22.5 GeV, Ks0 produced in Pb-Pb collisions at 158 A GeV, J/ψ particles produced in p-Pb collisions at 400 GeV and π+ , K+, p produced in proton-proton collisions at √s=200 GeV, can be described by the model, especially in the tail part of spectra.
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| 关 键 词： | 横动量谱 高能量 碰撞 质子 子核 横向动量分布 理想气体模型 计算结果 |
| 收稿时间： | 2011-3-6 |
| 修稿时间： | 2011-5-24 |
Transverse momentum spectra in high-energy nucleus-nucleus, proton-nucleus and proton-proton collisions |
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| XIE Wen-Jie.Transverse momentum spectra in high-energy nucleus-nucleus, proton-nucleus and proton-proton collisions[J].High Energy Physics and Nuclear Physics,2011,35(12):1111-1119. |
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| Authors: | XIE Wen-Jie |
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| Institution: | XIE Wen-Jie1) Department of Physics,Yuncheng University,Yuncheng 044000,China |
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| Abstract: | |
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| Keywords: | transverse momentum spectra multisource ideal gas model final-state particles Cu-Cu Pb-Pb p-Pb p-p collisions |
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