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arXiv 0811.0369hep-ex
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Few-GeV中微子束中带电电流相干π介子在碳上的产生

Search for Charged Current Coherent Pion Production on Carbon in a Few-GeV Neutrino Beam

SciBooNE Collaboration, K. Hiraide

摘要:

SciBooNE协作组利用两个不同的数据样本,对μ介子中微子在碳原子(ν_μ^{12}C \to μ^- ^{12}C π^+)上散射产生带电电流相干π介子进行了研究。没有观察到相干π介子产生的证据。我们将平均中微子能量为1.1 GeV时带电电流相干π介子产生截面与总带电电流截面之比的90%置信度上限设为0.67 \times 10^{-2},平均中微子能量为2.2 GeV时为1.36 \times 10^{-2}。

英文摘要:

The SciBooNE Collaboration has performed a search for charged current coherent pion production from muon neutrinos scattering on carbon, ν_μ^{12}C \to μ^- ^{12}C π^+, with two distinct data samples. No evidence for coherent pion production is observed. We set 90% confidence level upper limits on the cross section ratio of charged current coherent pion production to the total charged current cross section at 0.67\times 10^{-2} at mean neutrino energy 1.1 GeV and 1.36\times 10^{-2} at mean neutrino energy 2.2 GeV.

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