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Gravitational form factors and angular momentum densities in light-front quark-diquark model

文献类型：期刊论文

作者Kumar, Narinder1; Mondal, Chandan2; Sharma, Neetika3,4
刊名EUROPEAN PHYSICAL JOURNAL A
出版日期2017-12-14
卷号53页码:14
ISSN号1434-6001
DOI10.1140/epja/i2017-12433-0
英文摘要We investigate the gravitational form factors (GFFs) and the longitudinal momentum densities (p(+) densities) for proton in a light-front quark-diquark model. The light-front wave functions are constructed from the soft-wall AdS/QCD prediction. The contributions from both the scalar and the axial vector diquarks are considered here. The results are compared with the consequences of a parametrization of nucleon generalized parton distributions (GPDs) in the light of recent MRST measurements of parton distribution functions (PDFs) and a soft-wall AdS/QCD model. The spatial distribution of angular momentum for up and down quarks inside the nucleon has been presented. At the density level, we illustrate different definitions of angular momentum explicitly for an up and down quark in the light-front quark-diquark model inspired by AdS/QCD.
WOS关键词GENERALIZED PARTON DISTRIBUTIONS ; VIRTUAL COMPTON-SCATTERING ; NUCLEON ; SPIN ; HERA ; BARYONS ; ELECTROPRODUCTION ; SYSTEMATICS ; EXOTICA ; MESONS
资助项目Science and Engineering Research Board, a statutory board under Department of Science and Technology, Government of India under the National Post-Doctoral Fellowship[PDF/2016/000722] ; China Postdoctoral Science Foundation[2017M623279] ; University Grants Commission (UGC), Government of India[F.4-2/2006 (BSR)/PH/16-17/0007]
WOS研究方向Physics
语种英语
出版者SPRINGER
WOS记录号WOS:000417954000002
资助机构Science and Engineering Research Board, a statutory board under Department of Science and Technology, Government of India under the National Post-Doctoral Fellowship ; China Postdoctoral Science Foundation ; University Grants Commission (UGC), Government of India
源URL[http://119.78.100.186/handle/113462/47038]  
专题中国科学院近代物理研究所
通讯作者Mondal, Chandan
作者单位1.Indian Inst Technol, Dept Phys, Kanpur 208016, Uttar Pradesh, India
2.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Gansu, Peoples R China
3.IK Gujral Punjab Tech Univ, Dept Phys Sci, Jalandhar 144603, Punjab, India
4.Panjab Univ, Dept Phys, Chandigarh 160014, India
推荐引用方式
GB/T 7714		 Kumar, Narinder,Mondal, Chandan,Sharma, Neetika. Gravitational form factors and angular momentum densities in light-front quark-diquark model[J]. EUROPEAN PHYSICAL JOURNAL A,2017,53:14.
APA Kumar, Narinder,Mondal, Chandan,&Sharma, Neetika.(2017).Gravitational form factors and angular momentum densities in light-front quark-diquark model.EUROPEAN PHYSICAL JOURNAL A,53,14.
MLA Kumar, Narinder,et al."Gravitational form factors and angular momentum densities in light-front quark-diquark model".EUROPEAN PHYSICAL JOURNAL A 53(2017):14.

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来源：近代物理研究所

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