Atmospheric and solar neutrino masses from horizontal U(1) symmetry -: art. no. 031301

被引：68

作者：

Choi, KW ^{[1
]}

Wwang, KW

Chun, EJ

机构：

[1] Korea Adv Inst Sci & Technol, Dept Phys, Taejon 305701, South Korea

[2] Korea Inst Adv Study, Seoul 130012, South Korea

来源：

PHYSICAL REVIEW D | 1999年 / 60卷 / 03期

关键词：

D O I：

10.1103/PhysRevD.60.031301

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We study the neutrino mass matrix in supersymmetric models in which the quark and charged lepton mass hierarchies and also the suppression of baryon or lepton number violating, i.e., R-parity violating, couplings are all explained by horizontal U(1)(X) symmetry. It is found that the neutrino masses and mixing angles suggested by recent atmospheric and solar neutrino experiments arise naturally in this framework which fits in best with gauge-mediated supersymmetry breaking with large tan beta. This framework highly favors the small angle Mikheyev-Smirnov-Wolfenstein oscillation of solar neutrinos, and determines the order of magnitude of all the neutrino mixing angles and mass hierarchies. [S0556-2821(99) 50413-X].

引用

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