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arXiv 0812.2243hep-exastro-phhep-ph
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1- GeV中微子束中类电子事件的不可解释过剩

Unexplained Excess of Electron-Like Events From a 1-GeV Neutrino Beam

MiniBooNE Collaboration

备注：
Reduced length by 30 lines and made minor changes to references
发表信息：
Phys.Rev.Lett.102:101802,2009
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摘要：

MiniBooNE合作观察到在200至475 MeV的重建中微子能量范围内无法解释的电子类事件。当$6.46 \times 10^{20}$质子在靶上时，与$415.2 \pm 43.4$事件的预期相比，在该能量范围内观察到544个类电子事件，对应于过量的$128.8 \pm 20.4 \pm 38.3$事件。在几个运动学变量的过剩的形状是一致的是由于无论是$ν_e$和$\bar ν_e$带电电流散射或$ν_μ$中性电流散射与光子在最终状态。在重建的中微子能量范围从475到1250兆电子伏，其中408个事件观察相比，预期的$385.9 \pm 35.7$事件没有显着的过量的事件。

英文摘要：

The MiniBooNE Collaboration observes unexplained electron-like events in the reconstructed neutrino energy range from 200 to 475 MeV. With $6.46 \times 10^{20}$ protons on target, 544 electron-like events are observed in this energy range, compared to an expectation of $415.2 \pm 43.4$ events, corresponding to an excess of $128.8 \pm 20.4 \pm 38.3$ events. The shape of the excess in several kinematic variables is consistent with being due to either $ν_e$ and $\bar ν_e$ charged-current scattering or to $ν_μ$ neutral-current scattering with a photon in the final state. No significant excess of events is observed in the reconstructed neutrino energy range from 475 to 1250 MeV, where 408 events are observed compared to an expectation of $385.9 \pm 35.7$ events.

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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