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On the structure of the pi pi invariant mass spectra of the gamma(4S)->gamma(1S,2S)pi(+)pi(-) decays
Guo, Feng-Kun; Shen, Peng-Nian; Chiang, Huan-Ching; Ping, Rong-Gang; Guo, FK , Forschungszentrum Julich, Inst Kernphys, D-52425 Julich, Germany
2007
发表期刊PHYSICS LETTERS B
ISSN0370-2693
卷号658期号:40911页码:27-32
摘要We perform a model-independent analysis for recently reported data of the pi(+)pi(-) invariant mass spectra in the gamma (4S) -> gamma (1S, 2S)pi(+)pi(-) decays and point out that there does exist a broad peak below 0.6 GeV in the data of the gamma(4S) -> gamma(1S)pi(+)pi(-) decay, which is analogous to that in the gamma (3S) -> gamma(1S)pi(+)pi(-) decay. With the data of gamma(4S) decays, we further test our model developed for studying the puzzle in the gamma (3S) -> gamma (1S) pi(+)pi(-) decay. The result shows that with such a model, all the pi(+)pi(-) invariant mass spectra of gamma (4S) decays can be described. We also predict the cos theta(pi)* distributions of gamma (4S) -> gamma (1S, 2S)pi(+)pi(-) decays, which can be used to justify our model prediction. (c) 2007 Elsevier B.V. All rights reserved.
部门归属[Guo, FK; Shen, PN; Chiang, HC; Ping, RG] Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China; [Guo, FK; Shen, PN; Ping, RG] CCAST World Lab, Beijing 100080, Peoples R China; [Chiang, HC] SW Univ, Chongqing 400715, Peoples R China; [Shen, PN] Chinese Acad Sci, Inst Theoret Phys, Beijing 2735, Peoples R China; [Shen, PN] Natl Lab Heavy Ion Accelerator, Ctr Theoret Nucl Phys, Lanzhou 730000, Peoples R China; [Guo, FK] Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
关键词Heavy Quarkonia Hadronic Transitions Chiral-symmetry Scalar Mesons S-wave State Gamma(3s) Sigma
学科领域Physics
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收录类别SCI
WOS记录号WOS:000251895400005
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被引频次:11[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/311006/5616
专题理论物理所1978-2010年知识产出
通讯作者Guo, FK , Forschungszentrum Julich, Inst Kernphys, D-52425 Julich, Germany
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Guo, Feng-Kun,Shen, Peng-Nian,Chiang, Huan-Ching,et al. On the structure of the pi pi invariant mass spectra of the gamma(4S)->gamma(1S,2S)pi(+)pi(-) decays[J]. PHYSICS LETTERS B,2007,658(40911):27-32.
APA Guo, Feng-Kun,Shen, Peng-Nian,Chiang, Huan-Ching,Ping, Rong-Gang,&Guo, FK , Forschungszentrum Julich, Inst Kernphys, D-52425 Julich, Germany.(2007).On the structure of the pi pi invariant mass spectra of the gamma(4S)->gamma(1S,2S)pi(+)pi(-) decays.PHYSICS LETTERS B,658(40911),27-32.
MLA Guo, Feng-Kun,et al."On the structure of the pi pi invariant mass spectra of the gamma(4S)->gamma(1S,2S)pi(+)pi(-) decays".PHYSICS LETTERS B 658.40911(2007):27-32.
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