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Study ao(980)-f0(980) mixing in charmonium decays
引用本文:吴佳俊,赵强,邹冰松.Study ao(980)-f0(980) mixing in charmonium decays[J].中国物理 C,2010,34(6):848-854.
作者姓名:吴佳俊  赵强  邹冰松
作者单位:Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China; Theoretical Physics Center for Science Facilities, CAS, Beijing 100049, China
基金项目:Supported by National Natural Science Foundation of China (10435080, 10521003, 10675131) and Chinese Academy of Sciences Knowledge Innovation Project (KJCX3-SYW-N2)
摘    要:In this proceeding, we propose to directly measure the a0^0(980)-f0 (980) mixing in J/ψ→φf0(980)→φa0^0(980) and Xc1→π^0a0^0(980) →π^0f0(980) with the upgraded Beijing Electron Positron Collider(BEPCII) with BESIII detector. We show that a narrow peak of about 8 MeV will be produced by the a0^0(980)-f0(980) mixing, and the predominant feature makes it standing out from the background contributions. The predicted branching ratios for these two reactions are both expected to be about O(10^-6), which is unambiguously accessible with 10^9 J/ψ and 3 × 10^8 Xc1 at BESⅢ.

关 键 词:粲夸克偶素  混合  基频  北京正负电子对撞机  衰变  直接测量  北京谱仪  探测器
收稿时间:2010-1-26
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