Model for T2K indication with maximal θ23 and trimaximal θ12

被引：84

作者：

Morisi, S. ^{[1
]}

Patel, Ketan M. ^{[2
]}

Peinado, E. ^{[1
]}

机构：

[1] Univ Valencia, CSIC, Inst Fis Corpuscular, AHEP Grp, E-46071 Valencia, Spain

[2] Phys Res Lab, Ahmadabad 380009, Gujarat, India

来源：

PHYSICAL REVIEW D | 2011年 / 84卷 / 05期

关键词：

D O I：

10.1103/PhysRevD.84.053002

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Recently T2K experiment gives hint in favor of large reactor angle theta(13). Most of the models, with tribimaximal mixing at the leading order, can not reproduce such a large mixing angle since they predict typically corrections for the reactor angle of the order theta(13) similar to lambda(2)(C), where lambda(C) similar to 0.2. In this paper, we discuss the possibility to achieve large theta(13) within the T2K region with maximal atmosphericmixing angle, sin(2)theta(23) = 1/2, and trimaximal solar mixing angle, sin(2)theta(12) = 1/3, through the deviation from the exact tribimaximal mixing. We derive the structure of neutrino mass matrix that leads to the large theta(13) leaving maximal theta(23) and trimaximal theta(12). It is shown that such a structure of neutrino mass matrix can arise in a model with S-4 flavor symmetry.

引用

页数：6

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