Twist-3 generalized parton distribution for the proton from basis light-front quantization

被引：7
|
作者：
Zhang, Ziqi [1 ,2 ,3 ]
Hu, Zhi [1 ,2 ,3 ]
Xu, Siqi [1 ,2 ,3 ]
Mondal, Chandan [1 ,2 ,3 ]
Zhao, Xingbo [1 ,2 ,3 ]
Vary, James P. [4 ]
机构：
[1] Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China
[2] Univ Chinese Acad Sci, Sch Nucl Sci & Technol, Beijing 100049, Peoples R China
[3] Chinese Acad Sci, Inst Modern Phys, CAS Key Lab High Precis Nucl Spect, Lanzhou 730000, Peoples R China
[4] Iowa State Univ, Dept Phys & Astron, Ames, IA 50011 USA
来源：
PHYSICAL REVIEW D | 2024年 / 109卷 / 03期
基金：
中国国家自然科学基金; 国家重点研发计划;
关键词：
VIRTUAL COMPTON-SCATTERING; SPIN STRUCTURE;
D O I：
10.1103/PhysRevD.109.034031
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We investigate the twist-3 generalized parton distributions (GPDs) for the valence quarks of the proton within the basis light-front quantization (BLFQ) framework. We first solve for the mass spectra and lightfront waved functions (LFWFs) in the leading Fock sector using an effective Hamiltonian. Using the LFWFs we then calculate the twist-3 GPDs via the overlap representation. By taking the forward limit, we also get the twist-3 parton distribution functions (PDFs), and discuss their properties. Our prediction for the twist-3 scalar PDF agrees well with the CLAS experimental extractions.
引用
收藏
页数：16
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