TRANSITION FORM-FACTORS IN PI-0, ETA, AND ETA' COUPLINGS TO GAMMA-GAMMA-STAR

被引：48

作者：

AMETLLER, L

BIJNENS, J

BRAMON, A

CORNET, F

机构：

[1] CERN,DIV THEORY,CH-1211 GENEVA 23,SWITZERLAND

[2] UNIV AUTONOMA BARCELONA,FIS TEOR GRP,E-08193 BARCELONA,SPAIN

[3] UNIV GRANADA,DEPT FIS TEOR & COSMOS,E-18071 GRANADA,SPAIN

来源：

PHYSICAL REVIEW D | 1992年 / 45卷 / 03期

关键词：

D O I：

10.1103/PhysRevD.45.986

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Recent measurements of the transition form factors for the P-gamma-gamma* vertices, with P = pi-0, eta, and eta', are compared with different models. These include vector-meson dominance, constituent-quark loops, the QCD-inspired interpolation by Brodsky-Lepage, and chiral perturbation theory. General agreement is observed and differences-due to SU(3) breaking-are stressed and discussed.

引用

页码：986 / 989

页数：4

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