Analysis the f0(980) and a0(980) mesons as four-quark states with the QCD sum rules

被引：26

作者：

Wang, ZG ^{[1
]}

Yang, WM

机构：

[1] N China Elect Power Univ, Dept Phys, Baoding 071003, Peoples R China

[2] Univ Sci & Technol China, Dept Modern Phys, Anhua 230026, Peoples R China

来源：

EUROPEAN PHYSICAL JOURNAL C | 2005年 / 42卷 / 01期

关键词：

D O I：

10.1140/epjc/s2005-02263-4

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

In this article, we take the point of view that the scalar mesons f(0)( 980) and a(0)( 980) are the diquark-antidiquark states ( qq) (3) over bar( (q) over bar(q) over bar)(3), and we devote our attention to the determination of their masses in the framework of the QCD sum rule approach with the interpolating currents constructed from scalar scalar type and pseudoscalar-pseudoscalar type diquark pairs respectively. The numerical results indicate that the scalar mesons f(0)( 980) and a(0)( 980) may have two possible diquark-antidiquark substructures.

引用

页码：89 / 92

页数：4

共 46 条

[1] Search for the scalar a(0) and f(0) mesons in the reactions e(+)e(-)->gamma pi(0)pi(0)(eta) [J].

Achasov, NN ;

Gubin, VV .

PHYSICAL REVIEW D, 1997, 56 (07) :4084-4097

[2] ON A SEARCH FOR 4-QUARK STATES IN RADIATIVE DECAYS OF PH/-MESONS [J].

ACHASOV, NN ;

IVANCHENKO, VN .

NUCLEAR PHYSICS B, 1989, 315 (02) :465-476

[3] Analysis of the nature of the φ→γπη and φ→γπ0π0 decays -: art. no. 094007 [J].

Achasov, NN ;

Gubin, VV .

PHYSICAL REVIEW D, 2001, 63 (09)

[4] Production of scalar K(K)over-bar molecules in phi radiative decays [J].

Achasov, NN ;

Gubin, VV ;

Shevchenko, VI .

PHYSICAL REVIEW D, 1997, 56 (01) :203-211

[5] Mesons beyond the naive quark model [J].

Amsler, C ;

Törnqvist, NA .

PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS, 2004, 389 (02) :61-117

[6] Direct instantons and nucleon magnetic moments [J].

Aw, M ;

Banerjee, MK ;

Forkel, H .

PHYSICS LETTERS B, 1999, 454 (1-2) :147-154

[7] Unquenching the scalar glueball [J].

Boglione, M ;

Pennington, MR .

PHYSICAL REVIEW LETTERS, 1997, 79 (11) :1998-2001

[8] Dynamical generation of scalar mesons [J].

Boglione, M ;

Pennington, MR .

PHYSICAL REVIEW D, 2002, 65 (11)

[9]

BRITO TV, HEPPH0411233

[10] DIQUARKS AND THE BOSONIZATION OF QCD [J].

CAHILL, RT ;

PRASCHIFKA, J ;

BURDEN, CJ .

AUSTRALIAN JOURNAL OF PHYSICS, 1989, 42 (02) :161-169

← 1 2 3 4 5 →