Quark anomalous magnetic moment and its effects on the ρ meson properties

被引：10

作者：

Xing, Zanbin ^{[1
]}

Raya, Khepani ^{[1
,2
,3
]}

Chang, Lei ^{[1
]}

机构：

[1] Nankai Univ, Sch Phys, Tianjin 300071, Peoples R China

[2] Univ Granada, Dept Fis Teor & Cosmos, E-18071 Granada, Spain

[3] Univ Nacl Autonoma Mexico, Inst Ciencias Nucl, Apartado Postal 70-543, Cdmx 04510, Mexico

来源：

PHYSICAL REVIEW D | 2021年 / 104卷 / 05期

基金：

中国国家自然科学基金;

关键词：

CHIRAL-SYMMETRY BREAKING; SCHWINGER-DYSON; SPECTRUM; THEOREM; LIGHT; MODEL;

D O I：

10.1103/PhysRevD.104.054038

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

A symmetry-preserving treatment of mesons, within a Dyson-Schwinger and Bethe-Salpeter equations approach, demands an interconnection between the kernels of the quark gap equation and meson Bethe-Salpeter equation. Appealing to those symmetries expressed by the vector and axial-vector Ward-Green-Takahashi identitiges (WGTI), we construct a two-body Bethe-Salpeter kernel and study its implications in the vector channel; particularly, we analyze the structure of the quark-photon vertex, which explicitly develops a vector meson pole in the timelike axis and the quark anomlaous magnetic moment term, as well as a variety of rho meson properties: mass and decay constants, electromagnetic form factors, and valence-quark distribution amplitudes.

引用

页数：13

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