Neutrino mass matrix in triplet Higgs models with A4 symmetry

被引：6
作者：
Oh, Myoung Chu [3 ]
Baek, Seungwon [1 ,2 ]
机构：
[1] Korea Univ, Inst Basic Sci, Seoul 136701, South Korea
[2] Korea Univ, Dept Phys, Seoul 136701, South Korea
[3] Univ Seoul, Dept Phys, Seoul 130743, South Korea
来源：
PHYSICS LETTERS B | 2010年 / 690卷 / 01期
关键词：
A(4) symmetry; Tribimaximal mixing; Neutrino less double beta decay; OSCILLATIONS;
D O I：
10.1016/j.physletb.2010.04.068
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We consider triplet Higgs model with A(4) symmetry to generate the neutrino mass matrix. The tribimaximal form of the neutrino mixing matrix can be naturally obtained. Imposing the neutrino oscillation data, we show that 1) both normal and inverted mass hierarchy are allowed, 2) there is a lower bound on the lightest neutrino mass and the effective mass for neutrinoless double beta decay, 3) the non-vanishing theta(13) can be accommodated by considering small perturbation, 4) theta(atm) should be very close to pi/4 even after perturbation. (C) 2010 Elsevier B.V. All rights reserved.
引用
收藏
页码：29 / 37
页数：9
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