CONTRIBUTIONS OF THE C-ODD AXIAL-VECTOR RESONANCES TO ETA-]PI-0-GAMMA-GAMMA AND GAMMA-GAMMA-]PI-0-PI-0

被引：19

作者：

KO, PW

机构：

[1] School of Physics and Astronomy, University of Minnesota, Minneapolis

来源：

PHYSICAL REVIEW D | 1993年 / 47卷 / 09期

关键词：

D O I：

10.1103/PhysRevD.47.3933

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We consider the contributions of the C-odd axial-vector resonances (b1,h1) to eta-->pi0gammagamma, as well as those of the usual C-odd vector resonances (rho,omega) and chiral loops. Inclusion of b1(1235), h1(1170), h1(1380) increases the decay width of eta-->pi0gammagamma, improving the theoretical prediction. The measurement of the gammagamma spectrum can test our model. We also discuss the effects of these C-odd axial-vector resonances on electromagnetic interactions of neutral pions: gammagamma-->pi0pi0 and electric and magnetic polarizabilities of pi0.

引用

页码：3933 / 3937

页数：5

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