Grand unification of μ-τ symmetry

被引：59
|
作者：
Mohapatra, R. N. [1 ]
Nasri, S. [1 ]
Yu, Hai-Bo [1 ]
机构：
[1] Univ Maryland, Dept Phys, College Pk, MD 20742 USA
来源：
PHYSICS LETTERS B | 2006年 / 636卷 / 02期
基金：
美国国家科学基金会;
关键词：
D O I：
10.1016/j.physletb.2006.03.049
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
Near maximal neutrino mixing needed to understand atmospheric neutrino data can be interpreted to be a consequence of an interchange symmetry between the muon and tau neutrinos in the neutrino mass matrix in the flavor basis. This idea can be tested by a measurement of the neutrino mixing parameter theta(13) and looking for its correlation with theta(23) - pi/4. We present a supersymmetric SU(5) grand unified model for quarks and leptons which obeys this exchange symmetry and is a realistic model that can fit all observations. GUT embedding shifts theta(13) from its zero mu-tau symmetric value to a nonzero value keeping it under an upper limit. (C) 2006 Elsevier B.V. All rights reserved.
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页码：114 / 118
页数：5
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