| Hadron multiplicities in p＋p and p＋Pb collisions at the LHC |
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| 引用本文： | 王宏民,;侯召宇,;孙献静.Hadron multiplicities in p＋p and p＋Pb collisions at the LHC[J].核技术(英文版),2014(4):57-61. |
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| 作者姓名： | 王宏民 ;侯召宇 ;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 National Natural Science Foundation of China（No.11247322/A050306）; Natural Science Foundation of Hebei Province（No.A2012210043） |
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| 摘 要： | Experiments at the Large Hadron Collider（LHC） have measured multiplicity distributions in p＋p and p＋Pb collisions at a new domain of collision energy.Based on considering an energy-dependent broadening of the nucleon＇s density distribution,charged hadron multiplicities are studied with the phenomenological saturation model and the evolution equation dependent saturation model.By assuming the saturation scale has a small dependence on the 3-dimensional root mean square（rms） radius at different energy,the theoretical results are in good agreement with the experimental data from CMS and ALICE collaboration.The predictive results in p＋p collisions at √s = 14 TeV of the LHC are also given.
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| 关 键 词： | 大型强子对撞机 碰撞能量 多重数分布 LHC PP Pb 饱和度模型 实验数据 |
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