Analysis of 0++ nonet mesons as four-quark states with QCD sum rules

被引：32
|
作者：
Wang, ZG [1 ]
Yang, WM
Wan, SL
机构：
[1] N China Elect Power Uni, Dept Phys, Baoding 071003, Peoples R China
[2] Univ Sci & Technol China, Dept Modern Phys, Anhua 230026, Peoples R China
来源：
JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS | 2005年 / 31卷 / 08期
关键词：
D O I：
10.1088/0954-3899/31/8/025
中图分类号：
O57 [原子核物理学、高能物理学];
学科分类号：
070202 ;
摘要：
In this paper, we take the point of view that the O++ nonet mesons below 1 GeV are diquark-antidiquark states (qq)((3) over bar) ((q) over bar(q) over bar (3) and seek to determine their masses in the framework of the QCD sum rules approach with the interpolating currents constructed from scalar-scalar-type and pseudoscalar-pseudoscalar-type diquark pairs respectively. The numerical results indicate that the O++ nonet mesons may have two possible diquark-antidiquark substructures.
引用
收藏
页码：971 / 979
页数：9
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