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Partial wave analysis of J/psi decays into rho rho pi
Zhang, ZX; Wu N(吴宁); Wu, N
2007
发表期刊COMMUNICATIONS IN THEORETICAL PHYSICS
卷号48期号:2页码:313-318
通讯作者Peking Univ, Dept Phys, Beijing 100871, Peoples R China ; Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China
摘要The possible place to search for exotic states in J/psi hadronic decays is in J/psi -> pp pi. Because of the symmetry of identical particle and the symmetry of isospin, the physical analysis on this channel is quite complicated. In this paper, the method to use the partial wave analysis based on covariant helicity amplitude analysis to study the invariant mass spectrum of p pi and to find the evidence of exotic states in p pi spectrum is discussed. The decay amplitude for the decay sequence J/psi) -> pX, X -> p pi is given first. Then we discuss how to realize the identical particle symmetry and the isospin symmetry in the decay amplitude, which is the key point in the analysis of this channel. Then the total decay amp litude of this channel including all decay components is given. After that, how to identify the exotic states in the p pi spectrum is discussed. What is discussed in this paper is the theoretical basis on experimentally searching- for exotic states at BEPC/BES.
文章类型Article
关键词covariant helicity-coupling amplitudes exotic state
学科领域Physics
研究领域[WOS]Physics
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语种英语
WOS类目Physics, Multidisciplinary
WOS记录号WOS:000249140700022
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文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/236922
专题实验物理中心
作者单位中国科学院高能物理研究所
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Zhang, ZX,Wu N,Wu, N. Partial wave analysis of J/psi decays into rho rho pi[J]. COMMUNICATIONS IN THEORETICAL PHYSICS,2007,48(2):313-318.
APA Zhang, ZX,吴宁,&Wu, N.(2007).Partial wave analysis of J/psi decays into rho rho pi.COMMUNICATIONS IN THEORETICAL PHYSICS,48(2),313-318.
MLA Zhang, ZX,et al."Partial wave analysis of J/psi decays into rho rho pi".COMMUNICATIONS IN THEORETICAL PHYSICS 48.2(2007):313-318.
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