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Prompt photon production in proton–nucleus collisions at LHC:a comparison among color dipole models

Communications in Theoretical Physics 2023年第12期75卷 75-83页

作者： Hong-Min Wang Yan-Zhao Wang Yong-Han Xu Xian-Jing Sun Physics Department Army Academy of Armored ForcesPLABeijing 100072China Department of Mathematics and Physics Shijiazhuang Tiedao UniversityShijiazhuang 050043China Hebei Key Laboratory of Physics and Energy Technology North China Electric Power UniversityBaoding 071000China Institute of High Energy Physics Chinese Academy of SciencesBeijing 100049China

The nuclear modification factor for prompt photon production in proton-nucleus collisions is investigated within color dipole *** means of the glauber-gribov approach,the nuclear effects are studied in various rapidity bins with the evolution equation-based saturation models and the phenomenological dipole *** theoretical results are compared with the experimental data provided by PHENIX,ATLAS and CMS *** forward rapidity and midrapidity,a reasonable agreement with the experimental data is shown for the theoretical results with the modified Kharzeev,Levin and Nardi model,and the Kowalski and Teaney ***,we analyze the influence of the initial state energy loss effect on the nuclear modification factor and find that it is obvious only at backward rapidity together with small ***,the theoretical results are also compared with those of JETPHOX Monte Carlo program and the predictive results for the LHCb at very forward rapidities are presented.

关键词： color dipole formalism glauber-gribov approach small-r limit

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Charmed Meson Production in Deep Inelastic e+A Scattering at Small-x

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Communications in Theoretical Physics 2011年第8期 307-311页

作者：王宏民侯召宇刘家福孙献静 Physics Department Academy of Armored Forces Engineering of People's Liberation Army Physics Graduate School Shijiazhuang Railway Institute Institute of High Energy Physics Chinese Academy of Sciences

Based on the nuclear effects considered in the glauber-gribov approach,charmed meson production inhigh energy deep inelastic e+A scattering is investigated in the color dipole *** the Peterson fragmentationfunction and the KLR-AdS/CFT color dipole model,which reasonably well describes the HERA data for the inclusivestructure functions at small Bjorken-x,we present the predictive results for the D-meson transverse spectra at EIC andLHeC *** theoretical results indicate that the x-independence phenomena at very small-x predicted by theKLR-AdS/CFT model are not seen in our calculation.

关键词： charmed meson production glauber-gribov approach saturation physics

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