J/ψ production in p+p and p+Pb collisions at ultrarelativistic energies  

作　　者：Hong-Min Wang Zhao-Yu Hou Xiu-Ting Wang Xian-Jing Sun 

机构地区：[1]Physics Department,Academy of Army Armored Forces of PLA [2]Physics Graduate School,Shijiazhuang Railway Institute [3]Institute of High Energy Physics,Chinese Academy of Sciences

出　　处：《Nuclear Science and Techniques》2018年第8期179-185,共7页核技术（英文）

基　　金：supported by the Natural Science Foundation of Hebei Province(A2012210043)

摘　　要：The production of J/ψ mesons in p+p and p+Pb collisions is studied in the framework of color-glass condensate together with a simple color evaporation model.Considering the nuclear effects with the Glauber–Gribov approach,we calculate the cross section and the nuclear modification factor of forward J/ψ production in p+Pb collisions at s^(1/2) 5:02 TeV.Then,the backward J/ψ production in p+Pb collisions at s^(1/2) 8:16 Te V is also analyzed.In our calculation,the phenomenology KLRAd S/CFT model and the rc BK approach,which are valid at a small x,are used to calculate the three-point function.It is shown that the theoretical results fit well with the experimental data from ALICE and LHCb.The production of J/ψ mesons in p＋p and p＋Pb collisions is studied in the framework of color-glass condensate together with a simple color evaporation model.Considering the nuclear effects with the Glauber–Gribov approach,we calculate the cross section and the nuclear modification factor of forward J/ψ production in p＋Pb collisions at s-（1/2） 5：02 TeV.Then,the backward J/ψ production in p＋Pb collisions at s-（1/2） 8：16 Te V is also analyzed.In our calculation,the phenomenology KLRAd S/CFT model and the rc BK approach,which are valid at a small x,are used to calculate the three-point function.It is shown that the theoretical results fit well with the experimental data from ALICE and LHCb.

关 键 词：碰撞 生产 GLAUBER 精力 J/Ψ 修正因素 冷凝物 现象学 

分 类 号：O571[理学—粒子物理与原子核物理]