Generalized parton distributions of sea quarks in the proton from nonlocal chiral effective theory

doi:10.1103/PhysRevD.106.054006

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	Generalized parton distributions of sea quarks in the proton from nonlocal chiral effective theory
	He, Fangcheng ; Ji, Chueng-Ryong ; Melnitchouk, W.; Thomas, A. W.; Wang, P.
刊名	PHYSICAL REVIEW D
	2022
卷号	106 期号:5 页码:54006
关键词	VIRTUAL COMPTON-SCATTERING FORM-FACTORS NUCLEON ASYMMETRY QCD
ISSN号	2470-0010
DOI	10.1103/PhysRevD.106.054006
英文摘要	We calculate the spin-averaged generalized parton distributions (GPDs) of sea quarks in the proton at zero skewness from nonlocal covariant chiral effective theory, including one-loop contributions from intermediate states with pseudoscalar mesons and octet and decuplet baryons. A relativistic regulator is generated from the nonlocal Lagrangian where a gauge link is introduced to guarantee local gauge invariance, with additional diagrams from the expansion of the gauge link ensuring conservation of electric charge and strangeness. Flavor asymmetries for sea quarks at zero and finite momentum transfer, as well as strange form factors, are obtained from the calculated GPDs, and results compared with phenomenological extractions and lattice QCD.
学科主题	Astronomy & Astrophysics ; Physics
语种	英语
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/27761]
专题	理论物理研究所_理论物理所1978-2010年知识产出
作者单位	1.Wang, P.] Univ Chinese Acad Sci, Coll Phys Sci, Beijing 100049, Peoples R China 2.North Carolina State Univ, Dept Phys, Raleigh, NC 27695 USA 3.Chinese Acad Sci, CAS Key Lab Theoret Phys, Inst Theoret Phys, Beijing 100190, Peoples R China 4.Melnitchouk, W.] Jefferson Lab, Newport News, VA 23606 USA 5.Thomas, A. W.] Univ Adelaide, CDMPP, Dept Phys, Adelaide, SA 5005, Australia 6.Thomas, A. W.] Univ Adelaide, Dept Phys, CSSM, Adelaide, SA 5005, Australia 7.Wang, P.] Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	He, Fangcheng,Ji, Chueng-Ryong,Melnitchouk, W.,et al. Generalized parton distributions of sea quarks in the proton from nonlocal chiral effective theory[J]. PHYSICAL REVIEW D,2022,106(5):54006.
APA	He, Fangcheng,Ji, Chueng-Ryong,Melnitchouk, W.,Thomas, A. W.,&Wang, P..(2022).Generalized parton distributions of sea quarks in the proton from nonlocal chiral effective theory.PHYSICAL REVIEW D,106(5),54006.
MLA	He, Fangcheng,et al."Generalized parton distributions of sea quarks in the proton from nonlocal chiral effective theory".PHYSICAL REVIEW D 106.5(2022):54006.