FERMION MASSES AND MIXINGS IN A FLAVOR SYMMETRICAL GUT

被引：13

作者：

BARBIERI, R

DVALI, G

STRUMIA, A

机构：

[1] INFN, I-56126 PISA, ITALY

[2] GEORGIAN ACAD SCI, INST PHYS, TBILISI 380077, GEORGIA

来源：

NUCLEAR PHYSICS B | 1995年 / 435卷 / 1-2期

关键词：

D O I：

10.1016/0550-3213(94)00510-L

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

We describe a supersymmetric Grand Unified Theory based on the gauge group SU(5)(3), or SO(10)(3), invariant under the interchange of any SU(5), or SO(10), with each family multiplet transforming non trivially under one different individual group factor. A realistic pattern of fermion masses and mixings is obtained as a result of an appropriate choice out of the many possible discretely degenerate vacua of the theory. In the SO(10) case, we predict the three neutrino masses in terms of an overall scale and, within factors of order unity, their mixing angles. A nu(e)-nu(mu) oscillation is suggested as a solution of the solar neutrino problem, implying a visible nu(mu)-nu(tau) oscillation in the forthcoming experiments. Grand unified theories of this type could be obtainable in a string theory framework.

引用

页码：102 / 114

页数：13

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