An Assessment of Pseudoscalar and Vector Meson Electromagnetic Form Factors

被引：1

作者：

Xu, Yin-Zhen ^{[1
,2
]}

Segovia, Jorge ^{[2
]}

机构：

[1] Univ Huelva, Fac Ciencias Expt, Ctr Estudios Avanzados Fis Matemat & Computac, Dept Ciencias Integradas, Huelva 21071, Spain

[2] Univ Pablo De Olavide, Dept Sistemas Fis Quim & Nat, Seville 41013, Spain

来源：

FEW-BODY SYSTEMS | 2023年 / 64卷 / 03期

关键词：

DYSON-SCHWINGER EQUATIONS; DOMINANCE; PION;

D O I：

10.1007/s00601-023-01845-6

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Within the framework of the Dyson-Schwinger/Bethe-Salpeter equations of quantum chromodynamics, we investigate the electromagnetic form factors of pseudoscalar and vector mesons with different hidden-flavor, from light to heavy quark sectors, and compare the results with those of the single-pole vector meson dominance (VMD) model. It is found that the charge radius of vector meson is larger than that of its pseudoscalar counterpart. As the current-quark mass increases, the electric form factor of the vector meson tends to approach that of its pseudoscalar counterpart, and gradually deviates from the prediction of the VMD model.

引用

页数：8

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