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arXiv 0710.3897hep-ex
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约束μ子内韧致辐射对MiniBooNE低能过剩的贡献

Constraining Muon Internal Bremsstrahlung as a Contribution to the MiniBooNE Low Energy Excess

MiniBooNE Collaboration

摘要:

使用$ν_μ$带电电流事件的干净标记的数据样本,证明了在MiniBooNE $ν_μ\to ν_e$分析中准确模拟了此类事件被错误识别为$ν_e$的速率。这种错误的识别,这可能会产生从μ介子内部韧致辐射,被果断地排除了作为一个来源的低能量电子类事件中报道的MiniBooNE搜索$ν_μ\to ν_e$振荡。这反驳了最近一篇论文的结论,该论文假设硬韧致辐射可以形成MiniBooNE $ν_e$样品的实质性背景。

英文摘要:

Using a cleanly tagged data sample of $ν_μ$ charged current events, it is demonstrated that the rate at which such events are mis-identified as $ν_e$'s is accurately simulated in the MiniBooNE $ν_μ\to ν_e$ analysis. Such mis-identification, which could arise from muon internal bremsstrahlung, is decisively ruled out as a source of the low energy electron-like events reported in the MiniBooNE search for $ν_μ\to ν_e$ oscillations. This refutes the conclusions of a recent paper which postulates that hard bremsstrahlung could form a substantial background to the MiniBooNE $ν_e$ sample.

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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