MINOS实验的新结果- EPS 2011会议录
New Results from the MINOS Experiment - EPS 2011 conference proceedings
摘要：
MINOS实验是一个长基线中微子实验，旨在研究中微子行为，特别是中微子振荡现象。MINOS将NuMI中微子束发送到两个探测器，一个是位于费米实验室光束源下游1公里处的近探测器，另一个是位于明尼苏达州Soudan矿735公里处的远探测器。MINOS自2005年以来一直在收集束流数据。本文总结了最近的中微子振荡结果，特别强调电子中微子的外观，探测中微子质量混合矩阵的角度$θ_{13}$。对于靶上8.2个$\times 10^{20}$质子的暴露，MINOS发现在90% C. L.下，正常质量等级的$\sin^{2}(2θ_{13})<0.12$和倒置质量等级的$<0.20$，如果CP违反阶段$δ=0$ .
英文摘要：
The MINOS experiment is a long-baseline neutrino experiment designed to study neutrino behaviour, in particular the phenomenon of neutrino oscillations. MINOS sends the NuMI neutrino beam through two detectors, a Near Detector 1 km downstream from the beam source at Fermilab, and a Far Detector 735 km away in the Soudan Mine in Minnesota. MINOS has been taking beam data since 2005. This document summarises recent neutrino oscillations results, with particular emphasis on electron neutrino appearance, which probes the angle $θ_{13}$ of the neutrino mass mixing matrix. For an exposure of 8.2$\times 10^{20}$ protons on target, MINOS finds that $\sin^{2}(2θ_{13})<0.12$ for the normal mass hierarchy, and $<0.20$ for the inverted mass hierarchy at the 90% C.L., if the CP-violating phase $δ=0$.
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