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arXiv 0909.4617hep-ex
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MiniBooNE中子-核子中性电流弹性散射的测量

Measurement of Neutrino-Nucleon Neutral Current Elastic Scattering in MiniBooNE

Denis Perevalov, Rex Tayloe

摘要:

使用中性流弹性中微子相互作用的高统计样本,MiniBooNE测量了矿物油($CH_2$)上的通量平均中性流弹性微分截面。使用后者,一个$χ^2$测试MC与不同值的轴向矢量质量已被执行。此外,还讨论了利用切伦科夫阈值以上的中性流弹性质子富集事件的样本来测量比值$νp\to νp /νN\to νN$的可能性。这个比值对奇异夸克对核子自旋的贡献$Δs$很敏感。

英文摘要:

Using a high-statistics sample of neutral current elastic neutrino interactions, MiniBooNE measured the flux-averaged neutral current elastic differential cross-section on mineral oil ($CH_2$). Using the latter, a $χ^2$ test of MC with different values of the axial vector mass has been performed. Also, a possibility of using a sample of neutral current elastic proton-enriched events above Cherenkov threshold to measure the ratio $νp\to νp /νN\to νN$ is discussed. This ratio is sensitive to the strange quark contribution to the nucleon spin, $Δs$.

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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