CP-violation from non-unitary leptonic mixing

被引：181
作者：
Fernandez-Martinez, E.
Gavela, M. B.
Lopez-Pavon, J. [1 ]
Yasuda, O.
机构：
[1] Univ Autonoma Madrid, Dept Fis Teor, E-28049 Madrid, Spain
[2] Univ Autonoma Madrid, Inst Fis Teor, E-28049 Madrid, Spain
[3] Tokyo Metropolitan Univ, Dept Phys, Tokyo 1920397, Japan
来源：
PHYSICS LETTERS B | 2007年 / 649卷 / 5-6期
基金：
日本学术振兴会;
关键词：
D O I：
10.1016/j.physletb.2007.03.069
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
A low-energy non-unitary leptonic mixing matrix is a generic effect of a large class of theories accounting for neutrino masses. It is shown how the extra CP-odd phases of a general non-unitary matrix allow for sizeable CP-asymmetries in channels other than those dominant in the standard unitary case. The nu(mu) -> nu(tau) channel turns out to be an excellent tool to further constrain moduli and phases. Furthermore, we clarify the relationship between our approach and the so-called "non-standard neutrino interactions" schemes: the sensitivities explored here apply as well to such constructions. (c) 2007 Elsevier B.V. All rights reserved.
引用
收藏
页码：427 / 435
页数：9
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