Study ao(980)-f0(980) mixing in charmonium decays |
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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. |
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作者姓名: | 吴佳俊 赵强 邹冰松 |
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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 |
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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) |
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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.
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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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