RADIATIVE DECAYS OF MESONS AND THE ETA-ETA'IOTA MIXING

被引：15

作者：

BARTELSKI, J ^{[1
]}

TATUR, S ^{[1
]}

机构：

[1] POLISH ACAD SCI,NICOLAUS COPERNICUS ASTRON CTR,PL-00716 WARSAW,POLAND

来源：

PHYSICS LETTERS B | 1992年 / 289卷 / 3-4期

关键词：

D O I：

10.1016/0370-2693(92)91244-4

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We consider the mixing of eta-eta'-iota pseudoscalar mesons, assuming that the last one is mainly a glueball (we identify iota with eta(1490)). Starting from a mass matrix given by the quark model, with chiral corrections taken into account, and experimental data on iota --> 2gamma decay we obtain that the admixture of the glueball state in eta' is less than 8%. Our model gives a good agreement when compared with the experimental data for electromagnetic decays of mesons. We also present the results for P --> 2gamma and iota --> rhogamma decays, which do not depend on mixing.

引用

页码：429 / 434

页数：6

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