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\(J/\psi \) production in p+p and p+Pb collisions at ultrarelativistic energies

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Abstract

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 \(\sqrt{s}=5.02\) TeV. Then, the backward \(J/\psi \) production in p+Pb collisions at \(\sqrt{s}=8.16\) 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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Fig. 1
Fig. 2

The data come from ALICE [30]

Fig. 3

The data come from ALICE [31] and LHCb [32]

Fig. 4

The data come from ALICE [31, 33]

Fig. 5

The data are from LHCb [34]

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Authors and Affiliations

  1. Physics Department, Academy of Army Armored Forces of PLA, Beijing, 100072, China

    Hong-Min Wang & Xiu-Ting Wang

  2. Physics Graduate School, Shijiazhuang Railway Institute, Shijiazhuang, 050043, China

    Zhao-Yu Hou

  3. Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, 100049, China

    Xian-Jing Sun

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  1. Hong-Min Wang
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  2. Zhao-Yu Hou
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Correspondence to Hong-Min Wang.

Additional information

This work was supported by the Natural Science Foundation of Hebei Province (A2012210043).

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Wang, HM., Hou, ZY., Wang, XT. et al. \(J/\psi \) production in p+p and p+Pb collisions at ultrarelativistic energies. NUCL SCI TECH 29, 116 (2018). https://doi.org/10.1007/s41365-018-0452-7

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