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BESⅢ实验测量J/ψ→γФ精度的研究

Experimental sensitivity study of J/ψ→γФ at BESⅢ
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摘要 基于BOSS软件框架,利用BESⅢ合作组产生的106M单举ψ(3686)事例,研究了在BESⅢ上实验测量C宇称破坏过程J/ψ→γФ可达到的实验精度.在无信号事例的单举ψ(3686)样本中,在90%置信水平下设定了该过程观测事例数的上限,并计算得到BF(J/ψ→γФ)的上限为6.1×10-7.研究结果表明在BESⅢ计划采集的实验数据样本下,该C宇称破坏过程的实验测量精度可达到10-7量级. Based on BOSS framework,using the 106 M inclusive ψ(3686) events produced by BESⅢ data production group,we studied the sensitivity of C parity violated channel J/ψ→γφ at BESⅢ.In the inclusive ψ(3686) sample without signal channel,we determined the upper limit observed number at 90% C.L..We obtained the upper limit branching fraction of J/ψ→γφ as 6.1× 10^-7.The results show the sensitivity can reach 10^-7 at the proposed data set will be collected at BESⅢ.
出处 《华中师范大学学报(自然科学版)》 CAS 北大核心 2014年第4期498-501,共4页 Journal of Central China Normal University:Natural Sciences
基金 国家自然科学基金项目(11205082 11205083) 南华大学博士科研启动基金项目(2011XQD28 2010XQD29) 南华大学粒子物理与原子核物理创新团队资助项目
关键词 C宇称破坏 J/Ψ衰变 BESⅢ C parity violation J/ψ decay BESⅢ
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参考文献13

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