SU(3) STRUCTURE DEPENDENCE IN PI-]E-NU-GAMMA AND K-]E-NU-GAMMA DECAYS

被引：5

作者：

KARLSEN, RE

SCADRON, MD

BRAMON, A

机构：

来源：

MODERN PHYSICS LETTERS A | 1993年 / 8卷 / 02期

关键词：

D O I：

10.1142/S0217732393000118

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We compute structure-dependent form factors for both pi --> eupsilongamma and K --> eupsilongamma decays using the SU(3) linear ar-model. Meson loop contributions reduce the axial-vector form factor F(A)(0) by about 40% in both cases. The predicted ratio gamma = F(A)(0)/F(V)(0) for pi --> eupsilongamma and sum \F(A)(0) + F(V)(0)\ for pi --> eupsilongamma and K --> eupsilongamma decays are all in excellent agreement with data.

引用

页码：97 / 105

页数：9

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