On the η′ gluonic admixture -: art. no. 054027

被引：54

作者：

Kou, E ^{[1
]}

机构：

[1] Ochanomizu Univ, Dept Phys, Tokyo 1120012, Japan

[2] Nagoya Univ, Dept Phys, Nagoya, Aichi 4648602, Japan

来源：

PHYSICAL REVIEW D | 2001年 / 63卷 / 05期

关键词：

D O I：

10.1103/PhysRevD.63.054027

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The eta' which is an SU(3)(F) singlet state can contain a pure gluon component, gluonium. We examine this possibility by analyzing all available experimental data. It is pointed out that the eta' gluonic component may be as large as 26%. We also show that the amplitude for J/psi-->eta' gamma decay obtains a notable contribution from as large a gluonium.

引用

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