Family symmetry and neutrino mixing

被引:125
作者
Elwood, JK [1 ]
Irges, N
Ramond, P
机构
[1] Kent State Univ, Dept Phys, Kent, OH 44242 USA
[2] Univ Florida, Dept Phys, Inst Fundamental Theory, Gainesville, FL 32611 USA
关键词
D O I
10.1103/PhysRevLett.81.5064
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
The observed quark hierarchies suggest a simple family symmetry. Generalized to leptons through grand-unified quantum numbers, it produces a neutrino mixing matrix with order-1 nu(mu) - nu(r) mixing, and order-lambda(3) nu(e) - nu(mu) and nu(e) - nu(r) mixings. The intrafamily hierarchy and observed neutrino mass differences together require this symmetry to be anomalous, suggesting through the Green-Schwarz mechanism a string or M-theory origin for the symmetry. [S0031-9007(98)07851-X].
引用
收藏
页码:5064 / 5067
页数:4
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