Anomalous flavor U(1):: predictive texture for bi-maximal neutrino mixing

被引:113
作者
Shafi, Q [1 ]
Tavartkiladze, Z
机构
[1] Univ Delaware, Bartol Res Inst, Newark, DE 19716 USA
[2] Georgian Acad Sci, Inst Phys, GE-380077 Tbilisi, Georgia
关键词
D O I
10.1016/S0370-2693(00)00458-5
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We present a scenario which naturally provides bi-maximal neutrino mixings for a simultaneous explanation of the recent atmospheric and solar neutrino data. A crucial role is played by an anomalous flavor U(1) symmetry, which is also important for a natural understanding of charged fermion mass hierarchies and magnitudes of the CKM matrix elements. Within MSSM the solar neutrino problem can be resolved either through vacuum oscillations or the large mixing angle MSW solution. In supersymmetric GUTs such as SU(5) and SO(10) the MSW solution is realized. If the flavor U(1) also mediates supersymmetry breaking, the vacuum solution in MSSM is eliminated, and only the large mixing angle MSW solution survives. (C) 2000 Published by Elsevier Science B.V. All rights reserved.
引用
收藏
页码:145 / 149
页数:5
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