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.
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页码：97 / 105
页数：9
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