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

Li Yunde; Xu Xiaomei; Liu Lianshou

Chinese Physics C> 1999, Vol. 23> Issue(8) : 837-840

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

Department of Physics, Yunnan University Kunming 6500912 Department of Physics, Yunnan Normal University, Kunming 6500923 Institute of Particle Physics, Huazhong Normal University, Wuhan 430070

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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 P_t gluon and heavy quark fragmentation of J/ψ.

References

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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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