Chromomagnetic mechanism for the X(3872) resonance

被引：85

作者：

Hogaasen, H

Richard, JM

Sorba, P

机构：

[1] Univ Oslo, Dept Phys, NO-0316 Oslo, Norway

[2] Univ Grenoble 1, Lab Phys Subatom & Cosmol, IN2P3, CNRS, F-38026 St Martin Dheres, France

[3] Lab Annecy Le Vieux Phys Theor, F-74941 Annecy Le Vieux, France

来源：

PHYSICAL REVIEW D | 2006年 / 73卷 / 05期

关键词：

D O I：

10.1103/PhysRevD.73.054013

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The chromomagnetic interaction, with proper account for flavor-symmetry breaking, is shown to explain the mass and coupling properties of the X(3872) resonance as a J(PC)=1(++) state consisting of a heavy quark-antiquark pair and a light one. It is crucial to introduce all the spin-color configurations compatible with these quantum numbers and diagonalize the chromomagnetic interaction in this basis. This approach thus differs from the molecular picture D (D) over bar (*) and from the diquark-anti-diquark picture.

引用

页数：4

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