Proposed search for a fourth neutrino with a PBq antineutrino source.
Proposed search for a fourth neutrino with a PBq antineutrino source.
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DOI：
10.1103/physrevlett.107.201801
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发表时间：
2011-07
影响因子：
8.6
通讯作者：
M. Cribier;M. Fechner;T. Lasserre;A. Letourneau;D. Lhuillier;G. Mention;D. Franco;V. Kornoukhov;S. Schönert
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文献类型：
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作者：
M. Cribier;M. Fechner;T. Lasserre;A. Letourneau;D. Lhuillier;G. Mention;D. Franco;V. Kornoukhov;S. Schönert
中微子振荡数据中观察到的几个异常现象可以通过假设的第四个中微子与三个标准中微子分开几个eV的平方质量差来解释（2）。我们表明，这一假设可以用PBq（十千居里尺度）（144）Ce或（106）Ru反中微子β源部署在一个大型的低背景液体闪烁探测器的中心进行测试。特别是，这种源的紧凑尺寸可以在事件空间分布中产生能量依赖的振荡模式，这将明确地确定中微子质量差和混合角。
Several observed anomalies in neutrino oscillation data can be explained by a hypothetical fourth neutrino separated from the three standard neutrinos by a squared mass difference of a few eV(2). We show that this hypothesis can be tested with a PBq (ten kilocurie scale) (144)Ce or (106)Ru antineutrino beta source deployed at the center of a large low background liquid scintillator detector. In particular, the compact size of such a source could yield an energy-dependent oscillating pattern in event spatial distribution that would unambiguously determine neutrino mass differences and mixing angles.