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Rescattering effects of baryon and antibaryon in heavy quarkonium decays
Chen, H; Ping, RG; Ping RG(平荣刚)
2007
发表期刊PHYSICS LETTERS B
卷号644期号:1页码:#REF!
通讯作者Ping, RG (reprint author), Chinese Acad Sci, Inst High Energy Phys, POB 918 4, Beijing 100049, Peoples R China.
摘要Rescattering effects of baryon and antibaryon in heavy quarkonium decays are investigated by studying their angular distributions. The rescattering amplitudes are phenomenologically evaluated by modeling the intermediate range interaction as a a or pion meson exchange between q (q) over bar quarks. The results show that the rescattering effects play an important role in determination of the angular distribution in heavy quarkonium decays. Especially, for J/psi and psi(2S) decays into Lambda(Lambda) over bar, Sigma(0)(Sigma) over bar (0) and Xi(-)(Xi) over bar (+) the angular distribution parameters could turn to be negative values in the limit of helicity conservation. These results provide us a possible explanation for understanding the negative sign of the angular distribution parameter measured for J/psi -> Sigma(0)(Sigma) over bar (0), namely, it might come from the baryonic SU(3)(F) symmetry breaking by incorporating rescattering effects. (c) 2006 Elsevier B.V. All rights reserved.
文章类型Article
关键词rescattering effects heavy quarkonium baryon
学科领域Physics
DOI10.1016/j.physletb.2006.05.093
收录类别SCI
WOS类目Physics, Multidisciplinary
WOS记录号WOS:000243550200010
引用统计
被引频次:3[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/311005/225784
专题理论物理室
实验物理中心
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GB/T 7714
Chen, H,Ping, RG,Ping RG. Rescattering effects of baryon and antibaryon in heavy quarkonium decays[J]. PHYSICS LETTERS B,2007,644(1):#REF!.
APA Chen, H,Ping, RG,&平荣刚.(2007).Rescattering effects of baryon and antibaryon in heavy quarkonium decays.PHYSICS LETTERS B,644(1),#REF!.
MLA Chen, H,et al."Rescattering effects of baryon and antibaryon in heavy quarkonium decays".PHYSICS LETTERS B 644.1(2007):#REF!.
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