| pp和PbPb碰撞中大横动量K和π的光生过程(英文) |
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| 引用本文： | 蔡燕兵,余功明,李云德. pp和PbPb碰撞中大横动量K和π的光生过程(英文)[J]. 原子核物理评论, 2014, 31(1): 14-18. DOI: 10.11804/NuclPhysRev.31.01.014 |
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| 作者姓名： | 蔡燕兵 余功明 李云德 |
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| 作者单位： | 云南大学物理系, 昆明 650091 |
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| 基金项目： | National Natural Science Foundation of China(10665003,11065010)~~ |
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| 摘 要： | 基于微扰量子色动力学(pQCD),计算了考虑核遮蔽效应和喷注淬火效应的pp和PbPb碰撞中大横动量K和π的光生过程的产额。在光生过程中可以看到K~+/π~+的增强。数值计算结果表明,所考虑的光生过程对K和π产生是一个很好的修正。
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| 关 键 词： | 光生过程 奇异性 K/π产率 重离子碰撞 |
| 收稿时间： | 1900-01-01 |
Photoproduction of High-pT Kaon and Pion in pp and PbPb Collisions |
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| CAI Yanbing,YU Gongming,LI Yunde. Photoproduction of High-pT Kaon and Pion in pp and PbPb Collisions[J]. Nuclear Physics Review, 2014, 31(1): 14-18. DOI: 10.11804/NuclPhysRev.31.01.014 |
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| Authors: | CAI Yanbing YU Gongming LI Yunde |
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| Affiliation: | Department of Physics, Yunnan University, Kunming 650091, China |
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| Abstract: | By taking into account the effects of shadowing and jet quenching, the production of high-pT kaon and pion originating from photoproduction processes in pp and PbPb collisions is calculated based on perturbative quantum chromodynamics(pQCD). The enhancement of K+/π+ is found in photoproduction processes. The numerical results indicate that the photoproduction processes considering in our calculation are a good modification for kaon and pion production. |
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