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Study of electromagnetic decay of J/psi and psi
Zhao, Qiang; Li, Gang; Chang, Chao-Hsi; Zhao, Q , Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China
2007
发表期刊PHYSICS LETTERS B
ISSN0370-2693
卷号645期号:40942页码:173-179
摘要The electromagnetic decay contributions to J/ psi(psi') -> VP, where V and P stand for vector and pseudoscalar meson, respectively, are investigated in a vector meson dominance (VMD) model. We show that J/psi(psi) -> gamma* -> VP can be constrained well with the available experimental information. We find that this process has significant contributions in psi' -> VP and may play a key role in understanding the deviations from the so-called "12% rule" for the branching ratio fractions between psi -> VP and J/psi -> VP. We also address that the "12% rule" becomes very empirical in exclusive hadronic decay channels. (c) 2006 Elsevier B.V. All rights reserved.
部门归属Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China; Univ Surrey, Dept Phys, Guildford GU2 7XH, Surrey, England; Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China
关键词Rho-pi Puzzle Possible Explanation Model
学科领域Physics
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收录类别SCI
文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/5791
专题理论物理所1978-2010年知识产出
通讯作者Zhao, Q , Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China
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Zhao, Qiang,Li, Gang,Chang, Chao-Hsi,et al. Study of electromagnetic decay of J/psi and psi[J]. PHYSICS LETTERS B,2007,645(40942):173-179.
APA Zhao, Qiang,Li, Gang,Chang, Chao-Hsi,&Zhao, Q , Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China.(2007).Study of electromagnetic decay of J/psi and psi.PHYSICS LETTERS B,645(40942),173-179.
MLA Zhao, Qiang,et al."Study of electromagnetic decay of J/psi and psi".PHYSICS LETTERS B 645.40942(2007):173-179.
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