Hints for the existence of hexaquark states in the baryon-antibaryon sector

被引：27

作者：

Abud, Mario ^{[1
,2
]}

Buccella, Franco ^{[1
,2
]}

Tramontano, Francesco ^{[3
]}

机构：

[1] Univ Naples Federico II, Dipartimento Sci Fis, I-80126 Naples, Italy

[2] Ist Nazl Fis Nucl, Sez Napoli, I-80126 Naples, Italy

[3] CERN, Dept Phys, Theory Grp, CH-1211 Geneva 23, Switzerland

来源：

PHYSICAL REVIEW D | 2010年 / 81卷 / 07期

关键词：

MULTIQUARK HADRONS; DOMINANCE;

D O I：

10.1103/PhysRevD.81.074018

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The discovery of some baryon-antibaryon resonances has led us to consider 3q 3 (q) over bar systems as possible candidates. We predict their spectrum in the framework of a constituent model, where the chromomagnetic interaction plays the main role. The relevant parameters are fixed by the present knowledge of tetraquarks. The emerging scenario complies well with experiment; besides the description of the baryon-antibaryon resonances, we find evidence for new tetraquark states, namely, the a(0)(Y) in the hidden strangeness sector and the Y(4140) and X(4350) in the cs (cs) over bar sector. A detailed account of the spectra and the decay channels is provided for future comparisons with data.

引用

页数：13

共 41 条

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