Study of weak radiative decays of D 0 → V γ

被引：2

作者：

Cao, Ye ^{[1
]}

Zhao, Qiang ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China

来源：

PHYSICAL REVIEW D | 2024年 / 109卷 / 09期

基金：

中国国家自然科学基金;

关键词：

MESONS; VECTOR;

D O I：

10.1103/PhysRevD.109.093005

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The weak radiative decay of D 0 -> V gamma with V = <overline> K 0 , and phi, rho 0 , and omega, is systematically studied in the vector meson dominance model. It allows us to distinguish the short -distance mechanisms which can be described by the tree -level transitions in the nonrelativistic constituent quark model, and the long-distance mechanisms which are related to the final -state interactions (FSIs). We find that the FSI effects play a crucial role in D 0 -> V gamma and the SU(3) flavor symmetry can provide a natural constraint on the relative phase between the short and long-distance transition amplitudes. Our analysis suggests that the D - meson weak radiative decays can serve as a good case for investigating the nonperturbative QCD mechanisms at the charm quark mass region.

引用

页数：18

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