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Double Q(2)-rescaling model and the nuclear effect of the parton distribution functions
He, ZM; Yao, XX; Duan, CG; Li, GL; Peng, H; Li GL(厉光烈)
1998
发表期刊EUROPEAN PHYSICAL JOURNAL C
卷号4期号:2页码:#REF!
通讯作者He, ZM (reprint author), CCAST, World Lab, POB 8730, Beijing 100080, Peoples R China.
摘要In order to overcome the shortcoming of nonconservation of nuclear momentum existing in the original Q(2)-rescaling model (OQ(2)RM) and avoid introducing nuclear shadowing factor, we proposed a double Q(2)-rescaling model (DQ(2)RM) for the parton distributions of the bound nucleon. Using the experimental data of lepton-nucleus deep inelastic scattering (DIS) and the condition of the nuclear momentum conservation, the Q(2)-rescaling parameters of various partons for Sn, Fe, Ca and C nuclei are determined. The rescaling parameters of valence quark distributions are larger than unity and gradually increase with atomic number A, on the contrary, the rescaling parameters of sea quark distributions and gluon distributions are smaller than unity, and slowly decrease with A. By using this model, the experimental data of the DIS process, the nuclear Drell-Yan process and J/psi, photoproduction process are consistently and quite satisfactorily explained.
文章类型Article
学科领域Physics
收录类别SCI
WOS类目Physics, Particles & Fields
WOS记录号WOS:000075027100013
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被引频次:16[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/227514
专题理论物理室
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He, ZM,Yao, XX,Duan, CG,et al. Double Q(2)-rescaling model and the nuclear effect of the parton distribution functions[J]. EUROPEAN PHYSICAL JOURNAL C,1998,4(2):#REF!.
APA He, ZM,Yao, XX,Duan, CG,Li, GL,Peng, H,&厉光烈.(1998).Double Q(2)-rescaling model and the nuclear effect of the parton distribution functions.EUROPEAN PHYSICAL JOURNAL C,4(2),#REF!.
MLA He, ZM,et al."Double Q(2)-rescaling model and the nuclear effect of the parton distribution functions".EUROPEAN PHYSICAL JOURNAL C 4.2(1998):#REF!.
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