CP violation and matter effect in long baseline neutrino oscillation experiments

被引:186
作者
Arafune, J
Koike, M
Sato, J
机构
[1] Institute for Cosmic Ray Research, University of Tokyo, Midori-cho
关键词
D O I
10.1103/PhysRevD.56.3093
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
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 nu(tau) 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.
引用
收藏
页码:3093 / 3099
页数:7
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