Systematic limits on sin22theta13 in neutrino oscillation experiments with multireactors
Systematic limits on sin22theta13 in neutrino oscillation experiments with multireactors
复制标题
多反应堆中微子振荡实验中对 sin22theta13 的系统限制
DOI：
10.1103/physrevd.73.053008
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发表时间：
2004
影响因子：
5
通讯作者：
G. Horton
中科院分区：
文献类型：
--
作者：
H. Sugiyama;O. Yasuda;F. Suekane;G. Horton
在多个反应堆的中微子振荡实验中研究了无统计误差（“系统极限”）的对 sin22theta13 的敏感性。使用分析方法，我们表明 sin22theta13 的系统限制由检测器的不相关系统误差 sigmau 主导。即使在使用多探测器和多反应器的实验中，事实证明，如果附近的探测器放置得当，大多数系统误差（包括由于多源性质引起的误差）都会被抵消，就像单反应器加两个探测器的情况一样。对 KASKA 计划（7 个反应堆和 3 个探测器）的情况进行了详细研究，并明确表明它不会受到多个反应堆带来的额外不确定性的影响。
Sensitivities to sin22theta13 without statistical errors ("systematic limit") are investigated in neutrino oscillation experiments with multiple reactors. Using an analytical approach, we show that the systematic limit on sin22theta13 is dominated by the uncorrelated systematic error sigmau of the detector. Even in an experiment with multidetectors and multireactors, it turns out that most of the systematic errors including the one due to the nature of multiple sources is canceled as in the case with a single reactor plus two detectors, if the near detectors are placed suitably. The case of the KASKA plan (7 reactors and 3 detectors) is investigated in detail, and it is explicitly shown that it does not suffer from the extra uncertainty due to multiple reactors.