Direct Hard Photoproduction of J/ψ andγ in High Energy Pb-Pb and Ca-Ca Collisions at LHC

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Li Yunde, Xu Xiaomei and Liu Lianshou. Direct Hard Photoproduction of J/ψ andγ in High Energy Pb-Pb and Ca-Ca Collisions at LHC[J]. Chinese Physics C, 1999, 23(8): 837-840.
Li Yunde, Xu Xiaomei and Liu Lianshou. Direct Hard Photoproduction of J/ψ andγ in High Energy Pb-Pb and Ca-Ca Collisions at LHC[J]. Chinese Physics C, 1999, 23(8): 837-840. shu
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Received: 1999-02-23
Revised: 1900-01-01
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Direct Hard Photoproduction of J/ψ andγ in High Energy Pb-Pb and Ca-Ca Collisions at LHC

    Corresponding author: Li Yunde,
  • Department of Physics, Yunnan University Kunming 6500912 Department of Physics, Yunnan Normal University, Kunming 6500923 Institute of Particle Physics, Huazhong Normal University, Wuhan 430070

Abstract: Direct hard PhotoProduction of J/ψ and γ at LHC Pb-Pb collisions with CMS energy 5.5ATeV, and Ca-Ca collisions with CMS energy 7ATeV, are discussed in the process: A+A→A+J/ψ(γ) + X. It turns out that the processes can be used to testing the gluon distribution in the nucleus, as well as to studying the mechanism of large Pt gluon and heavy quark fragmentation of J/ψ.

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