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

doi:10.1140/epja/i2017-12433-0

	Gravitational form factors and angular momentum densities in light-front quark-diquark model
	Kumar, Narinder 1; Mondal, Chandan 2; Sharma, Neetika 3,4
刊名	EUROPEAN PHYSICAL JOURNAL A
	2017-12-14
卷号	53 页码:14
ISSN号	1434-6001
DOI	10.1140/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.
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关键词	GENERALIZED PARTON DISTRIBUTIONS ; VIRTUAL COMPTON-SCATTERING ; NUCLEON ; SPIN ; HERA ; BARYONS ; ELECTROPRODUCTION ; SYSTEMATICS ; EXOTICA ; MESONS
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
内容类型	期刊论文
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.