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arXiv 1909.01017hep-exphysics.ins-det
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寻找eV无菌中微子--STEREO实验[Blois 2019]

Search for eV Sterile Neutrinos -- The STEREO Experiment [Blois 2019]

Stefan Schoppmann

摘要:

STEREO实验的目的是检验轻无菌中微子是反应堆反中微子异常的原因的假设。它测量ILL研究反应堆紧凑堆芯的反中微子能谱,使用6个相同的探测器单元,覆盖9至11米的基线。报告了反应器开启119天和反应器关闭211天的结果。使用中微子之间的相互作用率的所有细胞,独立于任何通量预测的直接比较,我们发现与零振荡假设的兼容性。反应堆反中微子异常的最佳拟合点在99% C. L时被拒绝。

英文摘要:

The STEREO experiment is designed to test the hypothesis of light sterile neutrinos being the cause of the Reactor Antineutrino Anomaly. It measures the antineutrino energy spectrum from the compact core of the ILL research reactor in six identical detector cells covering baselines between 9 and 11 m. Results from 119 days of reactor turned on and 211 days of reactor turned off are reported. Using a direct comparison between neutrino interaction rates of all cells, independent of any flux prediction, we find compatibility with the null oscillation hypothesis. The best fit point of the Reactor Antineutrino Anomaly is rejected at 99% C.L.

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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