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Dibaryon systems in chiral SU(3) quark model
Li, QB; Shen, PN; Zhang, ZY; Yu, YW; Shen, PN , Acad Sinica, Inst High Energy Phys, POB 9184, Beijing 100039, Peoples R China.
2001
发表期刊NUCLEAR PHYSICS A
ISSN0375-9474
卷号683期号:1页码:487-509
摘要The 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.
部门归属Acad Sinica, Inst High Energy Phys, Beijing 100039, Peoples R China; China Ctr Adv Sci & Technol, World Lab, Beijing 100080, Peoples R China; Acad Sinica, Inst Theoret Phys, Beijing 100080, Peoples R China; Natl Lab Heavy Ion Accelerator, Ctr Theoret Nucl Phys, Lanzhou 730000, Peoples R China
关键词Cluster Model Hyperon-nucleon Skyrme Model Dihyperon States Resonances Exchange Hadrons Energy Omega
学科领域Physics
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收录类别SCI
WOS记录号WOS:000167202600025
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被引频次:60[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/12809
专题理论物理所1978-2010年知识产出
通讯作者Shen, PN , Acad Sinica, Inst High Energy Phys, POB 9184, Beijing 100039, Peoples R China.
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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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