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arXiv 0709.4498hep-ex
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MiniBooNE中电荷-电流相互作用的测量

Charged-Current Interaction Measurements in MiniBooNE

MiniBooNE Collaboration, Teppei Katori

摘要:

中微子振荡是物理学中唯一已知的超越标准模型的现象。为了研究这一现象,对低能中微子散射(200<E<2000 MeV)的理解是高能物理学家的关键任务。在这个能量区域,带电电流准弹性(CCQE)中微子相互作用是主导过程,实验需要一个精确的模型来预测信号样本。MiniBooNE使用μ子中微子CCQE事件的高统计样本,发现一个简单的费米气体模型,经过适当的调整,准确地描述了碳上的CCQE事件。提取的参数包括有效轴向质量,MA=1.23 +- 0.20 GeV,和保利阻塞参数,kappa = 1.019 +- 0.011。

英文摘要:

Neutrino oscillation is the only known phenomenon for physics beyond the standard model. To investigate this phenomenon, the understanding of low energy neutrino scattering (200<E<2000 MeV) is the crucial task for high energy physicists. In this energy region, the charged current quasi-elastic (CCQE) neutrino interaction is the dominant process, and experiments require a precise model to predict signal samples. Using a high-statistics sample of muon neutrino CCQE events, MiniBooNE finds that a simple Fermi gas model, with appropriate adjustments, accurately characterizes the CCQE events on carbon. The extracted parameters include an effective axial mass, MA=1.23 +- 0.20 GeV, and a Pauli-blocking parameter, kappa = 1.019 +- 0.011.

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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