Axino-neutrino mixing in gauge-mediated supersymmetry breaking models

被引：23
|
作者：
Chun, EJ [1 ]
机构：
[1] Korea Inst Adv Study, Seoul 130012, South Korea
来源：
PHYSICS LETTERS B | 1999年 / 454卷 / 3-4期
关键词：
D O I：
10.1016/S0370-2693(99)00351-2
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
When the strong CP problem is solved by spontaneous breaking of an anomalous global symmetry in theories with gauge-mediated supersymmetry breaking, the pseudo Goldstone fermion (the axino) is a good candidate of a light sterile neutrino. Its mixing with neutrinos relevant for current neutrino experiments can arise in the presence of R-parity violation. The realistic four neutrino mass matrix is obtained when the see-saw mechanism is brought in, and an ansatz for the right-handed neutrino mass is constructed. (C) 1999 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：304 / 308
页数：5
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