Generalized parton distributions of sea quarks in the proton from nonlocal chiral effective theory
文献类型：期刊论文
| 作者 | He, Fangcheng; Ji, Chueng-Ryong; Melnitchouk, W.; Thomas, A. W.; Wang, P. |
| 刊名 | PHYSICAL REVIEW D
 |
| 出版日期 | 2022 |
| 卷号 | 106期号:5页码:54006 |
| ISSN号 | 2470-0010 |
| 关键词 | VIRTUAL COMPTON-SCATTERING FORM-FACTORS NUCLEON ASYMMETRY QCD |
| 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 |
| 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. |
入库方式： OAI收割
来源：理论物理研究所
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