Diffractive Scattering Factorization from J/ψ and γ Associated Production in HERA ep Collisions  

作　　者：YAN Zhan-Yuan DUAN Chun-Gui 

机构地区：[1]Department of Physics, North China Electric Power University, Baoding 071003, China Department of Physics, Hebei Teachers' University, Shijiazhuang 050016, China [2]CCAST (World Laboratory), P.O. Box 8730, Beijing 100080, China

出　　处：《Communications in Theoretical Physics》2002年第11期583-586,共4页理论物理通讯（英文版）

基　　金：The project supported in part by "High Energy Particle-Nuclear Interaction" (10175074) from National Natural Science Foundation of China, Natural Science Foundation of Hebei Province of China (100114), and the Youth Foundation of North China Electric Power University

摘　　要：Using three sets of Pomeron structure functions, the cross sections of J/ψ and γ associated productionvia resolved photon and proton diffractive scatting in ep collision are investigated. It is found that the cross sectionscalculated with various gluon distribution functions of Pomeron are different. The discrepancy is about 1.8 times fordifferential cross sections and 1.7 times for total cross sections. The experimental studies of the process could give valuableinsight in the diffractive production mechanism and test the color-octet mechanism for heavy quarkonium production ina new environment.

关 键 词：diffractive  Pomeron  color-octet 

分 类 号：O4[理学—物理]