Study of a New Dibaryon (ΩΩ)J<SUP>π</SUP>=0<SUP>+</SUP>

ZHANG Zong-Ye; YU You-Wen; QING Cheng-Rui; HE Zuo-Xiu; LU Zhong-Dao

Chinese Physics C> 2000, Vol. 24> Issue(S1) : 91-94

Study of a New Dibaryon (ΩΩ)J^π=0⁺

Institute of High Energy Physics,CAS,Beijing 100039,China2 Institute of Theoretical Physics,CAS,Beijing 100080,China3 China Institute of Atomic Energy,Beijing 102413,China

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Abstract：
The structure of a new dibaryon (ΩΩ)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 100MeV,the mean root square of the distance between two Ωs is 0.84fm and the preliminary estimated mean lifetime is about two times longer than that of the Ω.All 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.

References

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ZHANG Zong-Ye, W You-Wen, DAI Lian-Rong. High Energy Phys. and Nucl. Phys.,1996, 20: 363 (in Chinese) ;ZHANG Z Y et al. Nucl. Phys., 1997,A625:59(张宗烨，余友文，戴连荣.高能物理与核物理，1996,20: 363)2 YU You-Wen.ZHANG Zong-Ye,WAN Xu-Qing. High Energy Phys. and Nucl. Phys., 1999, 23:859(in Chinese); YU Y W. ZHANG Z Y.YUAN X Q.Commun.Theor.Phys.1999.31:1(余友文，张宗烨，袁秀青.高能物理与核物理，1999,23: 859)3 ZHANG Z Y et al. Commun. Theor. Phys., 2000, 33:3214 WANG F.PING J L, WU G H et al. Phys. Rev., 1995, C51: 3411

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ZHANG Zong-Ye, YU You-Wen, QING Cheng-Rui, HE Zuo-Xiu and LU Zhong-Dao. Study of a New Dibaryon (ΩΩ)J^π=0⁺[J]. Chinese Physics C, 2000, 24(S1): 91-94.

ZHANG Zong-Ye, YU You-Wen, QING Cheng-Rui, HE Zuo-Xiu and LU Zhong-Dao. Study of a New Dibaryon (ΩΩ)J^π=0⁺[J]. Chinese Physics C, 2000, 24(S1): 91-94. shu

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Received: 1900-01-01
Revised: 1900-01-01

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沈阳化工大学材料科学与工程学院沈阳 110142

Study of a New Dibaryon (ΩΩ)J^π=0⁺

Corresponding author: ZHANG Zong-Ye,

Institute of High Energy Physics,CAS,Beijing 100039,China2 Institute of Theoretical Physics,CAS,Beijing 100080,China3 China Institute of Atomic Energy,Beijing 102413,China

Received Date: 1900-01-01
Accepted Date: 1900-01-01
Available Online: 2000-07-15

Abstract: The structure of a new dibaryon (ΩΩ)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 100MeV,the mean root square of the distance between two Ωs is 0.84fm and the preliminary estimated mean lifetime is about two times longer than that of the Ω.All 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.