Inevitable pentaquark

被引:0
|
作者
Diakonov, Dmitri [1 ]
机构
[1] Petersburg Nucl Phys Inst, St Petersburg 188300, Russia
来源
PROGRESS OF THEORETICAL PHYSICS SUPPLEMENT | 2007年 / 168期
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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, we 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.
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页码:1 / 9
页数:9
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