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arXiv 0711.0980hep-ex
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轻子味破坏衰变τ^ \pm \to l^ \pm ω(l = e,μ)的研究

Search for Lepton Flavor Violating Decays τ^\pm \to l^\pmω(l = e, μ)

The BABAR Collaboration, B. Aubert

摘要:

利用斯坦福直线加速器中心PEP-Ⅱ储存环上的BABAR探测器收集的384.1 $fb^{-}$的$e^+e^- $湮灭数据,研究了$τ$到轻质量带电轻子和$ω$矢量介子的轻子味违反衰变。没有发现信号,并且分支比的上限确定为${\cal B}(τ^{\pm} \to \mathrm{e}^{\pm} ω) < 1.1\times10^{-7}$和${\cal B}(τ^{\pm} \to μ^{\pm} ω) < 1.0\times10^{-7}$,置信水平为90%。

英文摘要:

We have searched for lepton flavor violating decays of a $τ$ to a lighter-mass charged lepton and an $ω$ vector mesonusing 384.1 $fb^{-}$ of $e^+e^- $ annihilation data collected with the BABAR detector at the Stanford Linear Accelerator Center PEP-II storage ring. No signal is found, and the upper limits on the branching ratios are determined to be ${\cal B}(τ^{\pm} \to \mathrm{e}^{\pm} ω) < 1.1\times10^{-7}$ and ${\cal B}(τ^{\pm} \to μ^{\pm} ω) < 1.0\times10^{-7}$ at 90% confidence level.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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