结合反应堆实验确定在LBNE的$θ_{23}$的八分圆
Determining the Octant of $θ_{23}$ at LBNE in conjunction with Reactor Experiments
摘要：
我们已经探讨了解决$θ_{23}$八分体简并在新计划的长基线中微子实验（LBNE）的反应堆数据相结合的可能性。反应堆实验已经非常精确地测量了第三混合角$θ_{13}$，并且$θ_{13}$的这种精确测量反过来有助于$θ_{23}$八分圆测量。我们已经检查了八分圆灵敏度与反应堆的数据和没有它的改善，如果反应堆的数据被添加。对10kt和35kt液氩远探测器在有无近探测器情况下的八分圆灵敏度进行了比较研究，发现灵敏度随探测器质量的增加而提高。此外，近距离探测器的存在提高了灵敏度。本文还研究了加入先验信息对八分体确定的影响。
英文摘要：
We have explored the possibilities of resolving the $θ_{23}$ octant degeneracy present in the newly planned Long-Baseline Neutrino Experiment (LBNE) by combining reactor data. Reactor experiments have already measured the third mixing angle $θ_{13}$ very precisely and this precise measurenent of $θ_{13}$ in turn helps in $θ_{23}$ octant measurement. We have examined the octant sensitivity with and without reactor data and it improves if reactor data is added. The comparative study of octant sensitivities of 10kt and 35kt liquid argon Far Detectors, with and without the Near Detector, reveals that the sensitivity increases with an increase in detector mass. Also, the presence of the Near Detector improves the sensitivity. The effect of adding priors on octant determination is also studied in this work.
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