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p+p 碰撞中带电粒子赝快度分布的能量依赖性研究

张海利 姜志进

张海利, 姜志进. p+p 碰撞中带电粒子赝快度分布的能量依赖性研究[J]. 原子核物理评论, 2014, 31(1): 8-13. doi: 10.11804/NuclPhysRev.31.01.008
引用本文: 张海利, 姜志进. p+p 碰撞中带电粒子赝快度分布的能量依赖性研究[J]. 原子核物理评论, 2014, 31(1): 8-13. doi: 10.11804/NuclPhysRev.31.01.008
ZHANG Haili, JIANG Zhijin. Investigations for Energy Dependences of Pseudorapidity Distributions of Charged Particles in p+p Collisions[J]. Nuclear Physics Review, 2014, 31(1): 8-13. doi: 10.11804/NuclPhysRev.31.01.008
Citation: ZHANG Haili, JIANG Zhijin. Investigations for Energy Dependences of Pseudorapidity Distributions of Charged Particles in p+p Collisions[J]. Nuclear Physics Review, 2014, 31(1): 8-13. doi: 10.11804/NuclPhysRev.31.01.008

p+p 碰撞中带电粒子赝快度分布的能量依赖性研究

doi: 10.11804/NuclPhysRev.31.01.008

Investigations for Energy Dependences of Pseudorapidity Distributions of Charged Particles in p+p Collisions

  • 摘要: 在p+p 碰撞中,只有两个带头粒子,一个处在弹碎裂区,另一个处在靶碎裂区。研究表明:如同核-核碰撞一样,修正的Landau 流体力学模型本身不足以对p+p 碰撞中带电粒子赝快度分布的实验测量给出很好的描述,只有在考虑了带头粒子效应后,理论才能很好地与实验结果相一致。在ps=23.6~900 GeV 的整个能量范围内,理论与现有实验数据符合得很好。In a p+p collision, there are only two leading particles. One is in projectile fragmentation region,the other is in target fragmentation region. The investigation of present paper shows that, just like in nucleus-nucleus collisions, the revised Landau hydrodynamic model alone is not enough to have a good description to the measured pseudorapidity distributions of charged particles in p+p collisions. Only after the leading particles are taken into account as well, can the experimental data be matched up properly. The theoretical model works well in p+p collisions in the whole available energy region from ps=23.6 to 900 GeV.
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出版历程
  • 收稿日期:  1900-01-01
  • 修回日期:  1900-01-01
  • 刊出日期:  2014-03-20

p+p 碰撞中带电粒子赝快度分布的能量依赖性研究

doi: 10.11804/NuclPhysRev.31.01.008

摘要: 在p+p 碰撞中,只有两个带头粒子,一个处在弹碎裂区,另一个处在靶碎裂区。研究表明:如同核-核碰撞一样,修正的Landau 流体力学模型本身不足以对p+p 碰撞中带电粒子赝快度分布的实验测量给出很好的描述,只有在考虑了带头粒子效应后,理论才能很好地与实验结果相一致。在ps=23.6~900 GeV 的整个能量范围内,理论与现有实验数据符合得很好。In a p+p collision, there are only two leading particles. One is in projectile fragmentation region,the other is in target fragmentation region. The investigation of present paper shows that, just like in nucleus-nucleus collisions, the revised Landau hydrodynamic model alone is not enough to have a good description to the measured pseudorapidity distributions of charged particles in p+p collisions. Only after the leading particles are taken into account as well, can the experimental data be matched up properly. The theoretical model works well in p+p collisions in the whole available energy region from ps=23.6 to 900 GeV.

English Abstract

张海利, 姜志进. p+p 碰撞中带电粒子赝快度分布的能量依赖性研究[J]. 原子核物理评论, 2014, 31(1): 8-13. doi: 10.11804/NuclPhysRev.31.01.008
引用本文: 张海利, 姜志进. p+p 碰撞中带电粒子赝快度分布的能量依赖性研究[J]. 原子核物理评论, 2014, 31(1): 8-13. doi: 10.11804/NuclPhysRev.31.01.008
ZHANG Haili, JIANG Zhijin. Investigations for Energy Dependences of Pseudorapidity Distributions of Charged Particles in p+p Collisions[J]. Nuclear Physics Review, 2014, 31(1): 8-13. doi: 10.11804/NuclPhysRev.31.01.008
Citation: ZHANG Haili, JIANG Zhijin. Investigations for Energy Dependences of Pseudorapidity Distributions of Charged Particles in p+p Collisions[J]. Nuclear Physics Review, 2014, 31(1): 8-13. doi: 10.11804/NuclPhysRev.31.01.008

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