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Dibaryon mass and width calculation with tensor interaction
Pang, HR; Ping, JL; Chen, LZ; Wang, F; Pang, HR , Nanjing Univ, Dept Phys, Nanjing 210093, Peoples R China.
2004
发表期刊CHINESE PHYSICS LETTERS
ISSN0256-307X
卷号21期号:8页码:1455-1458
摘要The effect of tensor interaction due to gluon and Goldstone boson exchange on the dibaryon mass and decay width has been studied in the framework of the quark delocalization and colour screening model. The effective S-D wave transition interactions induced by gluon and Goldstone boson exchanges decrease quickly with the increasing channel strangeness, and there is no six-quark state in the light flavour world, which can become a bound one by the help of these tensor interactions, except for the deuteron. The K and eta meson exchange effect has been shown to be negligible after a short-range truncation in this model approach. The partial D-wave decay widths, from the NOmega state to the LambdaXi final states of spins 0 and 1, are 20.7 keV and 63.1 keV respectively. This is a very narrow dibaryon resonance, that might be detected in the relativistic heavy ion reaction by the existing RHIC detectors through the reconstruction of the LambdaXi vertex mass and by the future COMPAS detector at CERN and the FAIR project in Germany.
部门归属Nanjing Univ, Dept Phys, Nanjing 210093, Peoples R China; Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China; Nanjing Normal Univ, Dept Phys, Nanjing 210097, Peoples R China; Nanjing Univ, Ctr Theoret Phys, Nanjing 210093, Peoples R China
关键词Color-screening Model Extended Quark-delocalization
学科领域Physics
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收录类别SCI
WOS记录号WOS:000223162500012
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被引频次:7[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/311006/14025
专题理论物理所1978-2010年知识产出
通讯作者Pang, HR , Nanjing Univ, Dept Phys, Nanjing 210093, Peoples R China.
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GB/T 7714
Pang, HR,Ping, JL,Chen, LZ,et al. Dibaryon mass and width calculation with tensor interaction[J]. CHINESE PHYSICS LETTERS,2004,21(8):1455-1458.
APA Pang, HR,Ping, JL,Chen, LZ,Wang, F,&Pang, HR , Nanjing Univ, Dept Phys, Nanjing 210093, Peoples R China..(2004).Dibaryon mass and width calculation with tensor interaction.CHINESE PHYSICS LETTERS,21(8),1455-1458.
MLA Pang, HR,et al."Dibaryon mass and width calculation with tensor interaction".CHINESE PHYSICS LETTERS 21.8(2004):1455-1458.
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