pp和PbPb碰撞中大横动量K和π的光生过程

蔡燕兵; 余功明; 李云德

doi:10.11804/NuclPhysRev.31.01.014

原子核物理评论

pp和PbPb碰撞中大横动量K和π的光生过程

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蔡燕兵, 余功明, 李云德. 2014: pp和PbPb碰撞中大横动量K和π的光生过程, 原子核物理评论, null(1): 14-18. doi: 10.11804/NuclPhysRev.31.01.014

引用本文:

蔡燕兵, 余功明, 李云德. 2014: pp和PbPb碰撞中大横动量K和π的光生过程, 原子核物理评论, null(1): 14-18. doi: 10.11804/NuclPhysRev.31.01.014

CAI Yanbing, YU Gongming, LI Yunde. 2014: Photopro duction of High-pT Kaon and Pion in pp and PbPb Collisions, Nuclear Physics Review, null(1): 14-18. doi: 10.11804/NuclPhysRev.31.01.014

Citation:

CAI Yanbing, YU Gongming, LI Yunde. 2014: Photopro duction of High-pT Kaon and Pion in pp and PbPb Collisions, Nuclear Physics Review, null(1): 14-18. doi: 10.11804/NuclPhysRev.31.01.014

pp和PbPb碰撞中大横动量K和π的光生过程

云南大学物理系,昆明,650091

Photopro duction of High-pT Kaon and Pion in pp and PbPb Collisions

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。
- 光生过程 /
- 奇异性 /
- K/π产率 /
- 重离子碰撞
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 pho-toproduction processes. The numerical results indicate that the photoproduction processes considering in our calculation are a good modification for kaon and pion production.