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arXiv 1109.6795hep-ex
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在MINOS中寻找电子中微子出现

Search for Electron Neutrino Appearance in MINOS

Mhair Orchanian

摘要:

MINOS合作继续在费米实验室的NuMI(主注入器中微子)束中寻找$ν_e$的出现。光束中的中微子在距离光束源1公里的近探测器中相互作用,使我们能够表征分析中存在的背景。特别地,我们可以估计在存在或不存在$ν_μ\rightarrow ν_e$振荡的情况下,我们期望在远探测器(735公里外,在明尼苏达州北部的苏丹矿井中)中看到的$ν_e$候选事件的数量。最近的努力,以提高分析的灵敏度,包括升级的事件识别算法和拟合过程,进行了讨论,并从搜索的最新结果。

英文摘要:

The MINOS Collaboration continues its search for $ν_e$ appearance in the NuMI (Neutrinos at the Main Injector) beam at Fermilab. Neutrinos in the beam interact in the Near Detector, located 1 km from the beam source, allowing us to characterize the backgrounds present in our analysis. In particular, we can estimate the number of $ν_e$ candidate events we expect to see in the Far Detector (735 km away, in the Soudan mine in northern Minnesota) in the presence or absence of $ν_μ\rightarrow ν_e$ oscillation. Recent efforts to improve the sensitivity of the analysis, including upgrades to the event identification algorithm and fitting procedure, are discussed, and the latest results from the search are presented.

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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