Four-neutrino oscillations

被引:7
|
作者
Giunti, C
机构
[1] Ist Nazl Fis Nucl, Sez Torino, I-10125 Turin, Italy
[2] Univ Turin, Dipartimento Fis Teor, I-10125 Turin, Italy
关键词
D O I
10.1016/S0168-9002(00)00372-7
中图分类号
TH7 [仪器、仪表];
学科分类号
0804 ; 080401 ; 081102 ;
摘要
It is shown that at least four massive neutrinos are needed in order to accommodate the evidences in favor of neutrino oscillations found in solar and atmospheric neutrino experiments and in the LSND experiment. Among all four-neutrino schemes, only two, with a mass spectrum composed of two pairs of neutrinos with close masses separated by the "LSND gap" of the order of 1 eV, are compatible with the results of all neutrino oscillation experiments. In these two schemes the probality of nu(e)((-)) transitions into other states, the probability of nu(mu)((-)) --> nu(e)((-)) transitions and the size of CP violation effects in nu(mu) reversible arrow nu(e) and <(nu)over bar>(mu) reversible arrow <(nu)over bar>(e) transitions are suppressed in long-baseline experiments, (C) 2000 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:51 / 57
页数:7
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