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题名: On the structure of the pi pi invariant mass spectra of the gamma(4S)->gamma(1S,2S)pi(+)pi(-) decays
作者: Guo, Feng-Kun ;  Shen, Peng-Nian ;  Chiang, Huan-Ching ;  Ping, Rong-Gang
刊名: PHYSICS LETTERS B
出版日期: 2007
卷号: 658, 期号:40911, 页码:27-32
关键词: HEAVY QUARKONIA ;  HADRONIC TRANSITIONS ;  CHIRAL-SYMMETRY ;  SCALAR MESONS ;  S-WAVE ;  STATE ;  GAMMA(3S) ;  SIGMA
学科分类: Physics
通讯作者: Guo, FK , Forschungszentrum Julich, Inst Kernphys, D-52425 Julich, Germany
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
英文摘要: 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.
收录类别: SCI
原文出处: 查看原文
WOS记录号: WOS:000251895400005
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/5616
Appears in Collections:理论物理所1978-2010年知识产出_期刊论文

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Recommended Citation:
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.
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