Connecting bimaximal neutrino mixing to a light sterile neutrino

被引：52

作者：

Mohapatra, RN ^{[1
]}

机构：

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

来源：

PHYSICAL REVIEW D | 2001年 / 64卷 / 09期

关键词：

D O I：

10.1103/PhysRevD.64.091301

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

It is shown that if small neutrino masses owe their origin to the conventional seesaw mechanism and the Maki-Nakagawa-Sakata (MNS) mixing matrix is in the exact bimaximal form, then there exist symmetries in the theory that allow one of the right-handed neutrinos to become naturally massless, making it a candidate for the sterile neutrino discussed in the literature. Departures from the exact bimaximal limit lead to a tiny mass for the sterile neutrino as well as its mixing to the active neutrinos. This provides a minimal theoretical framework where a simultaneous explanation of the solar, atmospheric, and Liquid Scintillation Neutrino Detector (LSND) observations within the so-called 3+1 scenario may be possible.

引用

页数：5

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