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Structure of Di-Omega dibaryon
Dai, LR; Zhang ZY(张宗烨); Yu YW(余友文); Zhang, ZY; Yu, YW
2006
发表期刊CHINESE PHYSICS LETTERS
卷号23期号:12页码:3215-3218
通讯作者Liaoning Normal Univ, Dept Phys, Dalian 116029, Peoples R China ; Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China
文章类型Article
摘要Previously, we extended our chiral SU(3) quark model to include the coupling between the quark and vector chiral fields. [Nucl. Phys. A 727(2003)321]. Here we further study the structure of (Omega Omega)(ST=00) dibaryon in the extended chiral SU(3) quark model by solving a resonating group method equation. The vector meson exchanges effect, hidden colour channel and colour screening effect are investigated, respectively. The results show that the (Omega Omega)(ST=00) system is still the deeply bound state in the extended chiral SU(3) quark model in which the vector meson exchanges control the short-range quark-quark interaction, which is similar to the results obtained from the chiral SU(3) quark model. When the model space is enlarged by including the hidden colour channel, it is found that the energy of the hidden colour state vertical bar CC >(str=-6),(ST=00) is much higher than that of the (Omega Omega)(ST=00) state, thus the CC channel has little effect on the binding energy of (Omega Omega)(ST=00) state. When the error function confinement potential is considered, the bound state would not change largely. Further, scalar meson mixing is considered. No matter whether theta(S) = -18 degrees or ideal mixing is taken, (Omega Omega)(ST=00) is still a bound state.
学科领域Physics
研究领域[WOS]Physics ; Physics
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语种英语
研究领域[WOS]Physics ; Physics
WOS类目Physics, Multidisciplinary
WOS记录号WOS:000242414600026
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被引频次:8[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/239882
专题院士
作者单位中国科学院高能物理研究所
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GB/T 7714
Dai, LR,Zhang ZY,Yu YW,et al. Structure of Di-Omega dibaryon[J]. CHINESE PHYSICS LETTERS,2006,23(12):3215-3218.
APA Dai, LR,张宗烨,余友文,Zhang, ZY,&Yu, YW.(2006).Structure of Di-Omega dibaryon.CHINESE PHYSICS LETTERS,23(12),3215-3218.
MLA Dai, LR,et al."Structure of Di-Omega dibaryon".CHINESE PHYSICS LETTERS 23.12(2006):3215-3218.
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