Connecting leptogenesis to CP violation in neutrino mixings in a tri-bimaximal mixing model

被引：43

作者：

Mohapatra, R. N. ^{[1
]}

Yu, Hai-Bo ^{[1
]}

机构：

[1] Univ Maryland, Dept Phys, College Pk, MD 20742 USA

来源：

PHYSICS LETTERS B | 2007年 / 644卷 / 5-6期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1016/j.physletb.2006.12.005

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We show that in a recently proposed S-3 model for tri-bimaximal mixing pattern for neutrinos, CP violating phases in neutrino mixings are directly responsible for lepton asymmetry epsilon(l). In the exact tri-bimaximal limit, epsilon(l) is proportional to one of the Majorana phases whereas in the presence of small deviations from tri-bimaximal pattern, there are two contributions, one being proportional to the Dirac phase and the other to one of the two Majorana phases. In the second case, theta(13) is nonzero and correlated with the deviation from maximal atmospheric mixing. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：346 / 351

页数：6

共 83 条

[71] Leptogenesis, μ-τ symmetry and θ13 [J].