Amplitude analysis of the pi(0)pi(0) system produced in radiative J/psi decays
BESIII Collaboration
刊名PHYSICAL REVIEW D
2015
卷号92期号:5页码:52003
学科分类Astronomy & Astrophysics; Physics
DOI10.1103/PhysRevD.92.052003
文章类型Article
英文摘要An amplitude analysis of the pi(0)pi(0) system produced in radiative J/psi decays is presented. In particular, a piecewise function that describes the dynamics of the pi(0)pi(0) system is determined as a function of M pi(0)pi(0) from an analysis of the (1.311 +/- 0.011) x 10(9) J/psi decays collected by the BESIII detector. The goal of this analysis is to provide a description of the scalar and tensor components of the pi(0)pi(0) system while making minimal assumptions about the properties or number of poles in the amplitude. Such a model-independent description allows one to integrate these results with other related results from complementary reactions in the development of phenomenological models, which can then be used to directly fit experimental data to obtain parameters of interest. The branching fraction of J/psi -> pi(0)pi(0) is determined to be (1.15 +/- 0.05) x 10(-3), where the uncertainty is systematic only and the statistical uncertainty is negligible.
类目[WOS]Astronomy & Astrophysics ; Physics, Particles & Fields
收录类别SCI
WOS记录号WOS:000361119300002
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被引频次:10[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/228735
专题中国科学院高能物理研究所_实验物理中心_期刊论文
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BESIII Collaboration. Amplitude analysis of the pi(0)pi(0) system produced in radiative J/psi decays[J]. PHYSICAL REVIEW D,2015,92(5):52003.
APA BESIII Collaboration.(2015).Amplitude analysis of the pi(0)pi(0) system produced in radiative J/psi decays.PHYSICAL REVIEW D,92(5),52003.
MLA BESIII Collaboration."Amplitude analysis of the pi(0)pi(0) system produced in radiative J/psi decays".PHYSICAL REVIEW D 92.5(2015):52003.
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