The structure, mixing angle, mass and couplings of the light scalar f0(500) and f0(980) mesons

被引：17

作者：

Agaev, S. S. ^{[1
]}

Azizi, K. ^{[2
,3
]}

Sundu, H. ^{[4
]}

机构：

[1] Baku State Univ, Inst Phys Problems, AZ-1148 Baku, Azerbaijan

[2] Dogus Univ, Acibadem Kadikoy, Dept Phys, TR-34722 Istanbul, Turkey

[3] Inst Res Fundamental Sci IPM, Sch Phys, POB 19395-5531, Tehran, Iran

[4] Kocaeli Univ, Dept Phys, TR-41380 Izmit, Turkey

来源：

PHYSICS LETTERS B | 2018年 / 781卷

关键词：

QCD SUM-RULES; MULTIQUARK HADRONS; 4-QUARK STATES; QUARK-MODEL; MOLECULES;

D O I：

10.1016/j.physletb.2018.03.085

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The mixing angle, mass and couplings of the light scalar mesons f(0)(500) and f(0)(980) are calculated in the framework of QCD two-point sum rule approach by assuming that they are tetraquarks with diquark-antidiquark structures. The mesons are treated as mixtures of the heavy vertical bar H > = ([su][(s) over bar(u) over bar] + [sd][(s) over bar(d) over bar])/root 2 and light vertical bar L > = [ud][(u) over bar(d) over bar] scalar diquark-antidiquark components. We extract from corresponding sum rules the mixing angles phi(H) and phi(L) of these states and evaluate the masses and couplings of the particles f(0)(500) and f(0)(980). (c) 2018 The Author(s). Published by Elsevier B.V.

引用

页码：279 / 282

页数：4

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