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Formulation of Moment Analysis on fJ(1710) for Incomplete Phase Space in J/ψ → γK^(+)K^(-)

Chinese Physics Letters 2001年第3期18卷 358-360页

作者： CHEN Jie LI Xue-Qian LU Yong ZOU Bing-Song CCAST(World Laboratory) P.O.Box 8730Beijing 100080 Department of Physics Nankai UniversityTianjin 300071 Institute of High Energy Physics Chinese Academy of SciencesBeijing 100039 Institute of Theoretical Physics Chinese Academy of SciencesBeijing 100080

We discuss the moment analysis method for the 0^(++)and 2^(++)coupling mode of fJ(1710)for incomplete phase space in the radiative decay J/ψ→γK^(+)K^(-),and give a new formulation of analyzing the fJ(1710)structure for the Beijing Spectrometer detector at the Beijing Electron-Positron *** incomplete detection phase space results in a significant effect on the moment analysis.

关键词： incomplete (1) moment

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Low energy QCD Lagrangian description of strange meson photoproduction off the proton

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Science China Mathematics 2002年第5期45卷 671-680页

作者：周丽娟马维兴彭光雄 Department of Information and Computing Science Guangxi University of Technology Liuzhou 545006 China Department of Information and Computing Science Guangxi University of Technology Liuzhou 545006 China Institute of High Energy Physics Chinese Academy of Sciences Beijing 100039 China Institute of High Energy Physics Chinese Academy of Sciences Beijing 100039 China

Based on low energy QCD Lagrangian, and using wave function of baryon in [SuSF(6)? 0(3)]sym.? Suc(3) quark model, strange meson photoproduction off the proton is studied. Calculations of cross sections and p-polarization for γ + p → K + + Λ reaction are performed. The theoretical results show that, compared to traditional phenomenological models, the low energy QCD Lagrangian provides a successful description of the reaction process with only one free parameter, strongly coupling constant αm.

关键词： QCD, strange meson, photoproduction.

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