A prediction of a new dibaryon system (Omega(-)Omega(-)) J(pi)=0(+)

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	A prediction of a new dibaryon system (Omega(-)Omega(-)) J(pi)=0(+)
	Zhang, ZY; Yu, YW; Ching, CR; Ho, TH; Lu, ZD; Zhang, ZY , Acad Sinica, Inst High Energy Phys, POB 918, Beijing 100039, Peoples R China.
刊名	COMMUNICATIONS IN THEORETICAL PHYSICS
	2000
卷号	33 期号:3 页码:321-328
关键词	Nucleus-nucleus Collisions Quark Cluster Model Dihyperon
ISSN号	0253-6102
英文摘要	The structure of a new dibaryon (Omega Omega)(0+) is studied and predicted in the framework of the chiral SU(3) quark model by solving a resonating group method equation. The binding energy of this dibaryon is around 100 MeV, the mean root square of the distance between two Omega s is 0.84 fm and the preliminary estimated mean lifetime is about two times longer than that of the free Omega. Ail these interesting properties and also the two negative charge units it carried could make it be easily identified experimentally in the heavy-ion collision process. The production probability of this new dibaryon in 158A GeV Pb+Pb collision is estimated using the thermal model, which is of the order of 10(-6) to 10(-5) per event. And it is expected, that with the increase of temperature, the production rate will also be increased.
学科主题	Physics
WOS记录号	WOS:000087224500001
公开日期	2012-08-29
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/12977]
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	Zhang, ZY , Acad Sinica, Inst High Energy Phys, POB 918, Beijing 100039, Peoples R China.
推荐引用方式 GB/T 7714	Zhang, ZY,Yu, YW,Ching, CR,et al. A prediction of a new dibaryon system (Omega(-)Omega(-)) J(pi)=0(+)[J]. COMMUNICATIONS IN THEORETICAL PHYSICS,2000,33(3):321-328.
APA	Zhang, ZY,Yu, YW,Ching, CR,Ho, TH,Lu, ZD,&Zhang, ZY , Acad Sinica, Inst High Energy Phys, POB 918, Beijing 100039, Peoples R China..(2000).A prediction of a new dibaryon system (Omega(-)Omega(-)) J(pi)=0(+).COMMUNICATIONS IN THEORETICAL PHYSICS,33(3),321-328.
MLA	Zhang, ZY,et al."A prediction of a new dibaryon system (Omega(-)Omega(-)) J(pi)=0(+)".COMMUNICATIONS IN THEORETICAL PHYSICS 33.3(2000):321-328.