Exclusive Charmonium Photo-Production at HERA and LHC with Color Glass Condensate  

作　　者：蔡燕兵 杨毅 周代翠 向文昌 

机构地区：[1]Department of Physics, Yunnan University [2]Center for Interdisciplinary Studies in Physics and Related Areas, Guizhou University of Finance and Economics [3]Institute of Particle Physics, Central China Normal University

出　　处：《Chinese Physics Letters》2017年第12期16-20,共5页中国物理快报（英文版）

基　　金：Supported by the National Natural Science Foundation of China under Grant Nos 11765005,11305040,IRG11521064,11775097 and 11465021;the Fund of Science and Technology Department of Guizhou Province under Grant No[2015]2114;the Education Department of Guizhou Province under Grant No.KY[2017]004

摘　　要：We calculate the exclusive charmonium photo-production in the framework of color glass condensate.To obtain a good description of the vector meson production experimental data at HERA,we introduce a vector meson mass dependent skewness factor into the skewness effect.Then we extend the skewness improved model to the LHC energies.The numerical results of our model are in good agreement with theΨ/Ψ and Ψ（2S）data in ultraperipheral proton-proton collisions at LHC,which show the significance of the vector meson mass-dependent skewness factor.A prediction of the exclusive charmonium photo-production in ultra-peripheral nucleus-nucleus collisions is performed since it can provide a good way to test the effectiveness of the color glass condensate.We calculate the exclusive charmonium photo-production in the framework of color glass condensate.To obtain a good description of the vector meson production experimental data at HERA,we introduce a vector meson mass dependent skewness factor into the skewness effect.Then we extend the skewness improved model to the LHC energies.The numerical results of our model are in good agreement with theΨ/Ψ and Ψ（2S）data in ultraperipheral proton-proton collisions at LHC,which show the significance of the vector meson mass-dependent skewness factor.A prediction of the exclusive charmonium photo-production in ultra-peripheral nucleus-nucleus collisions is performed since it can provide a good way to test the effectiveness of the color glass condensate.

关 键 词：LHC Exclusive Charmonium Photo-Production at HERA and LHC with Color Glass Condensate Pb 

分 类 号：TQ171.1[化学工程—玻璃工业]