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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.
2000
发表期刊COMMUNICATIONS IN THEORETICAL PHYSICS
ISSN0253-6102
卷号33期号:3页码:321-328
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.
部门归属Acad Sinica, Inst High Energy Phys, Beijing 100039, Peoples R China; Acad Sinica, Inst Theoret Phys, Beijing 100039, Peoples R China; China Inst Atom Energy, Beijing 102413, Peoples R China
关键词Nucleus-nucleus Collisions Quark Cluster Model Dihyperon
学科领域Physics
收录类别SCI
WOS记录号WOS:000087224500001
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被引频次:1[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/311006/12977
专题理论物理所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.
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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.
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