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Zhao, Qiang; Li, Gang; Chang, Chao-Hsi; Zhao, Q , Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China
Study of electromagnetic decay of J/psi and psi
Source PublicationPHYSICS LETTERS B
KeywordRho-pi Puzzle Possible Explanation Model
AbstractThe 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.
2007
ISSN0370-2693
Volume645Issue:40942Pages:173-179
Subject AreaPhysics
Indexed BySCI
Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/5791
CollectionSCI期刊论文
Corresponding AuthorZhao, Q , Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
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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