Exclusive Charmonium Photo-Production at HERA and LHC with Color Glass Condensate
Yan-Bing Cai1, Yi Yang2, Dai-Cui Zhou3, Wen-Chang Xiang2**
1Department of Physics, Yunnan University, Kunming 650091 2Center for Interdisciplinary Studies in Physics and Related Areas, Guizhou University of Finance and Economics, Guiyang 550025 3Institute of Particle Physics, Central China Normal University, Wuhan 430079
Abstract：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 the $J/\psi$ and $\psi(2S)$ data in ultra-peripheral 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.
(Relativistic heavy-ion collisions (collisions induced by light ions studied to calibrate relativistic heavy-ion collisions should be classified under both 25.75.-q and sections 13 or 25 appropriate to the light ions))
引用本文:
. [J]. 中国物理快报, 2017, 34(12): 122501-.
Yan-Bing Cai, Yi Yang, Dai-Cui Zhou, Wen-Chang Xiang. Exclusive Charmonium Photo-Production at HERA and LHC with Color Glass Condensate. Chin. Phys. Lett., 2017, 34(12): 122501-.
2017, Vol. 34 
