Proton structure from a light-front Hamiltonian

被引：51

作者：

Mondal, Chandan ^{[1
,2
,6
]}

Xu, Siqi ^{[1
,2
,6
]}

Lan, Jiangshan ^{[1
,2
,3
,6
]}

Zhao, Xingbo ^{[1
,2
,6
]}

Li, Yang ^{[2
,4
]}

Chakrabarti, Dipankar ^{[5
]}

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] Lanzhou Univ, Lanzhou 730000, Peoples R China

[4] Iowa State Univ, Dept Phys & Astron, Ames, IA 50011 USA

[5] Indian Inst Technol Kanpur, Dept Phys, Kanpur 208016, Uttar Pradesh, India

[6] Chinese Acad Sci, Inst Modern Phys, CAS Key Lab High Precis Nucl Spect, Lanzhou 730000, Peoples R China

来源：

PHYSICAL REVIEW D | 2020年 / 102卷 / 01期

基金：

中国国家自然科学基金;

关键词：

GENERALIZED PARTON DISTRIBUTIONS; ELECTROMAGNETIC FORM-FACTORS; POLARIZATION TRANSFER; SPIN STRUCTURE; NUCLEON; SCATTERING; TRANSVERSITY; LATTICE; A(1)(N); QCD;

D O I：

10.1103/PhysRevD.102.016008

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We obtain the electromagnetic form factors, the axial form factor, and the parton distribution functions of the proton from the eigenstates of a light-front effective Hamiltonian in the leading Fock representation suitable for low-momentum scale applications. The electromagnetic and the axial form factors are found to be in agreement with the available experimental data. The unpolarized, the helicity, and the transversity valence quark distributions, after QCD evolution, are consistent with the global QCD analyses. The tensor charge also agrees the experimental data, while the axial charge is somewhat outside the experimental error bar.

引用

页数：8

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