Erratum:CPviolation and matter effect in long baseline neutrino oscillation experiments [Phys. Rev. D 56, 3093 (1997)]
Erratum:CPviolation and matter effect in long baseline neutrino oscillation experiments [Phys. Rev. D 56, 3093 (1997)]
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勘误表：长基线中微子振荡实验中的 CP 破坏和物质效应 [Phys.
DOI：
10.1103/physrevd.60.119905
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发表时间：
1999
影响因子：
5
通讯作者：
J. Sato
中科院分区：
文献类型：
--
作者：
J. Arafune;M. Koike;J. Sato
我们展示了如何在长基线中微子振荡实验中用三代中微子分离纯CP破坏效应和物质效应的简单方法。假设三个中微子中的一个质量（可能是ν τ质量）远大于其他质量和由于物质效应产生的有效质量，我们给出了中微子振荡几率的简洁公式。示出了两种方法。一种是观察作为中微子能量函数的振荡概率曲线的包络;这种方法的优点是只有一个探测器就足以确定CP破坏的存在。另一种方法是用至少两种不同的基线长度来比较实验;这种方法的优点是它只需要窄能量范围的振荡数据。
We show simple methods of how to separate pure CP-violating effects from matter effects in long baseline neutrino oscillation experiments with three generations of neutrinos. We give compact formulas for neutrino oscillation probabilities assuming one of the three neutrino masses (presumably ν τ mass) to be much larger than the other masses and the effective mass due to the matter effect. Two methods are shown. One is to observe envelopes of the curves of oscillation probabilities as functions of neutrino energy; a merit of this method is that only a single detector is enough to determine the presence of CP violation. The other is to compare experiments with at least two different baseline lengths; this has the merit that it needs only a narrow energy range of oscillation data.