Mixing of scalar glueballs and flavor-singlet scalar mesons

被引：101

作者：

McNeile, C ^{[1
]}

Michael, C ^{[1
]}

机构：

[1] Univ Liverpool, Dept Math Sci, Div Theoret Phys, Liverpool L69 3BX, Merseyside, England

来源：

PHYSICAL REVIEW D | 2001年 / 63卷 / 11期

关键词：

D O I：

10.1103/PhysRevD.63.114503

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We discuss in detail the extraction of hadronic mixing strengths from lattice studies. We apply this to the mixing of a scalar glueball and a scalar meson in the quenched approximation. We also measure correlations appropriate for flavor-singlet scalar mesons using dynamical quark configurations from UKQCD. This enables us to compare the results from the quenched study of the mixing with the direct determination of the mixed spectrum. Improved methods of evaluating the disconnected quark diagrams are also presented.

引用

页数：11

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