MODELS OF LIGHT SINGLET FERMION AND NEUTRINO PHENOMENOLOGY

被引：115

作者：

CHUN, EJ

JOSHIPURA, AS

SMIRNOV, AY

机构：

[1] PHYS RES LAB,THEORET PHYS GRP,AHMEDABAD 380009,GUJARAT,INDIA

[2] RUSSIAN ACAD SCI,INST NUCL RES,MOSCOW 117312,RUSSIA

来源：

PHYSICS LETTERS B | 1995年 / 357卷 / 04期

关键词：

D O I：

10.1016/0370-2693(95)00967-P

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We suggest that a singlet fermion S exists beyond the standard see-saw structure. It mixes with light neutrinos via interactions with the right-handed neutrino components, so that nu e --> S conversion solves the solar neutrino problem. Supersymmetry endowed with R-symmetry is shown to give a natural framework for existence, mass scale (similar to 3 . 10(-3) eV) and mixing (sin(2) 2 theta(es) similar to (0.1-1.5) . 10(-2)) of such a fermion. Models with an approximate horizontal symmetry are constructed, which embed the fermion S and explain simultaneously solar, atmospheric, hot dark matter problems as well as may predict the oscillation <(nu)over bar>(mu) --> <(nu)over bar>(e) in the region of sensitivity of KARMEN and LSND experiments.

引用

页码：608 / 615

页数：8