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。
By taking into account the effects of shadowing and jet quenching, the production of high- PT kaon and pion originating from photoproduetion 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.
出处
《原子核物理评论》
CAS
CSCD
北大核心
2014年第1期14-18,共5页
Nuclear Physics Review
基金
National Natural Science Foundation of China(10665003,11065010)~~
