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Global study of nuclear modifications on parton distribution functions

文献类型：期刊论文

作者Chen, Xurong3; Fu, Qiang1,2; Wang, Rong1,2,3
刊名NUCLEAR PHYSICS B
出版日期2017-07-01
卷号920页码:1-19
ISSN号0550-3213
DOI10.1016/j.nuclphysb.2017.04.008
英文摘要A global analysis of nuclear medium modifications of parton distributions is presented using deeply in-elastic scattering data of various nuclear targets. Two obtained data sets are provided for quark and gluon nuclear modification factors, referred as nIMParton16. One is from the global fit only to the experimental data of isospin-scalar nuclei (Set A), and the other is from the fit to all the measured nuclear data (Set B). The scale-dependence is described by DGLAP equations with nonlinear corrections in this work. The Fermi motion and off-shell effect, nucleon swelling, and parton parton recombination are taken into account together for modeling the complicated x-dependence of nuclear modification. The nuclear gluon shadowing in this paper is dynamically generated by the QCD evolution of parton splitting and recombination processes with zero gluon density at the input scale. Sophisticated nuclear dependence of nuclear medium effects is studied with only two free parameters. With the obtained free parameters from the global analysis, the nuclear modifications of parton distribution functions of unmeasured nuclei can be predicted in our model. Nuclear modification of deuteron is also predicted and shown with recent measurement at JLab. (C) 2017 The Author(s). Published by Elsevier B.V.
WOS关键词INELASTIC MUON SCATTERING ; STRUCTURE-FUNCTION RATIOS ; ELASTIC ELECTRON-SCATTERING ; GLUON RECOMBINATION ; FERMI MOMENTA ; IRON TARGETS ; SMALL VALUES ; DEUTERIUM ; QCD ; DEPENDENCE
资助项目National Basic Research Program (973 Program)[2014CB845406] ; Chinese Academy of Sciences[Y101020BR0]
WOS研究方向Physics
语种英语
WOS记录号WOS:000403741100001
出版者ELSEVIER SCIENCE BV
资助机构National Basic Research Program (973 Program) ; Chinese Academy of Sciences
源URL[http://119.78.100.186/handle/113462/45049]  
专题近代物理研究所_实验物理中心
通讯作者Chen, Xurong; Wang, Rong
作者单位1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
2.Lanzhou Univ, Lanzhou 730000, Peoples R China
3.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China
推荐引用方式
GB/T 7714		 Chen, Xurong,Fu, Qiang,Wang, Rong. Global study of nuclear modifications on parton distribution functions[J]. NUCLEAR PHYSICS B,2017,920:1-19.
APA Chen, Xurong,Fu, Qiang,&Wang, Rong.(2017).Global study of nuclear modifications on parton distribution functions.NUCLEAR PHYSICS B,920,1-19.
MLA Chen, Xurong,et al."Global study of nuclear modifications on parton distribution functions".NUCLEAR PHYSICS B 920(2017):1-19.

入库方式： OAI收割

来源：近代物理研究所

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