Dibaryon systems in chiral SU(3) quark model

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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.
刊名	NUCLEAR PHYSICS A
	2001
卷号	683 期号:1 页码:487-509
关键词	Cluster Model Hyperon-nucleon Skyrme Model Dihyperon States Resonances Exchange Hadrons Energy Omega
ISSN号	0375-9474
英文摘要	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 - XiOmega]((1,1/2)), [Xi Xi]((0,1)), [N Omega]((2,1/2)) would be weakly bound. The states of the second type such as [SigmaDelta]((0,5/2)), [SigmaDelta]((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 [XiOmega]((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.
学科主题	Physics
URL标识	查看原文
WOS记录号	WOS:000167202600025
公开日期	2012-08-29
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/12809]
专题	理论物理研究所_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.
推荐引用方式 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.