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Li, QB; Shen, PN; Zhang, ZY; Yu, YW; Shen, PN , Acad Sinica, Inst High Energy Phys, POB 9184, Beijing 100039, Peoples R China.
Dibaryon systems in chiral SU(3) quark model
Source PublicationNUCLEAR PHYSICS A
KeywordCluster Model Hyperon-nucleon Skyrme Model Dihyperon States Resonances Exchange Hadrons Energy Omega
AbstractThe possible candidates of S-wave dibaryons with various strange numbers are studied under the chiral SU(3) quark model. It is shown that there are three types of baryon-baryon bound states. The states of the first type are called deuteron-like states. If chiral fields can provide enough attraction between interacting baryons, these systems, such as [Xi Omega - Xi*Omega]((1,1/2)), [Xi Xi]((0,1)), [N Omega]((2,1/2)) would be weakly bound. The states of the second type such as [Sigma*Delta]((0,5/2)), [Sigma*Delta]((3,1/2)), [Delta Delta](0,3) and [Delta Delta]((3,0)) are named as Delta Delta -like states. Due to the highly symmetric character in orbital space, these systems could be relatively deeply bound, but the strong decay modes of composed baryons cause the widths of the states much broader. The states of the third type are entitled as Omega Omega -like states. Due to the same symmetry character shown in the systems of the second type and the only weak decay mode of composed baryons, for instance in [Omega Omega](0,0), or at most one strong decay mode of composed baryons, for example in [Xi*Omega]((0,1/2)), these states are deeply bound states with narrow widths. The states of latter two types are most interesting new dibaryon states and should be carefully investigated both theoretically and experimentally. (C) 2001 Elsevier Science B,V. All rights reserved.
2001
ISSN0375-9474
Volume683Issue:1Pages:487-509
Subject AreaPhysics
Indexed BySCI
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Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/12809
Collection理论物理所科研产出_SCI论文
Corresponding AuthorShen, PN , Acad Sinica, Inst High Energy Phys, POB 9184, Beijing 100039, Peoples R China.
Recommended Citation
GB/T 7714
Li, QB,Shen, PN,Zhang, ZY,et al. Dibaryon systems in chiral SU(3) quark model[J]. NUCLEAR PHYSICS A,2001,683(1):487-509.
APA Li, QB,Shen, PN,Zhang, ZY,Yu, YW,&Shen, PN , Acad Sinica, Inst High Energy Phys, POB 9184, Beijing 100039, Peoples R China..(2001).Dibaryon systems in chiral SU(3) quark model.NUCLEAR PHYSICS A,683(1),487-509.
MLA Li, QB,et al."Dibaryon systems in chiral SU(3) quark model".NUCLEAR PHYSICS A 683.1(2001):487-509.
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