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

被引:0
作者
Wang, Hong-Min [1 ]
Hou, Zhao-Yu [2 ]
Wang, Xiu-Ting [1 ]
Sun, Xian-Jing [3 ]
机构
[1] Acad Army Armored Forces PLA, Phys Dept, Beijing 100072, Peoples R China
[2] Shijiazhuang Railway Inst, Phys Grad Sch, Shijiazhuang 050043, Hebei, Peoples R China
[3] Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China
关键词
Color-glass condensate; Forward J/psi production; Glauber-Gribov approach; CONFIGURATIONAL ENTROPY; SATURATION; INFORMATION; ABSORPTION;
D O I
10.1007/s41365-018-0452-7
中图分类号
TL [原子能技术]; O571 [原子核物理学];
学科分类号
0827 ; 082701 ;
摘要
The production of J /psi 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/psi production in p+Pb collisions at root s = 5.02 TeV. Then, the backward J/psi production in p+Pb collisions at root s = 8.16 TeV is also analyzed. In our calculation, the phenomenology KLR-AdS/CFT model and the rcBK 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.
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页数:7
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