The narrow pentaquark

被引：0

作者：

Diakonov, Dmitri ^{[1
]}

机构：

[1] Petersburg Nucl Phys Inst, St Petersburg 188300, Russia

来源：

Quark Confinement and the Hadron Spectrum VII | 2007年 / 892卷

关键词：

D O I：

暂无

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The experimental status of the pentaquark searches is briefly reviewed. Recent null results by the CLAS collaboration are commented, and new strong evidence of a very narrow Theta(+) resonance by the DIANA collaboration is presented. On the theory side, I revisit the argument against the existence of the pentaquark - that of Callan and Klebanov - and show that actually a strong resonance is predicted in that approach, however its width is grossly overestimated. A recent calculation gives 2 MeV for the pentaquark width, and this number is probably still an upper bound [1].

引用

页码：258 / 261

页数：4

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