Partial wave analysis of J/psi decays into rho rho pi

	Partial wave analysis of J/psi decays into rho rho pi
	Zhang, ZX; Wu N(吴宁); Wu, N
刊名	COMMUNICATIONS IN THEORETICAL PHYSICS
	2007
卷号	48 期号:2 页码:313-318
关键词	covariant helicity-coupling amplitudes exotic state
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
英文摘要	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.
学科主题	Physics
类目[WOS]	Physics, Multidisciplinary
研究领域[WOS]	Physics
原文出处	SCI
语种	英语
WOS记录号	WOS:000249140700022
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/236922]
专题	高能物理研究所_实验物理中心高能物理研究所_粒子天体物理中心
作者单位	中国科学院高能物理研究所
推荐引用方式 GB/T 7714	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.