Unified framework for symmetry breaking in SO(10)

被引：50

作者：

Babu, KS ^{[1
]}

Gogoladze, I

Nath, P

Syed, RM

机构：

[1] Oklahoma State Univ, Dept Phys, Stillwater, OK 74078 USA

[2] Univ Notre Dame, Dept Phys, Notre Dame, IN 46556 USA

[3] Northeastern Univ, Dept Phys, Boston, MA 02115 USA

[4] Max Planck Inst Phys & Astrophys, D-80805 Munich, Germany

来源：

PHYSICAL REVIEW D | 2005年 / 72卷 / 09期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1103/PhysRevD.72.095011

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

A new SO(10) unified model is proposed based on a one-step breaking of SO(10) to the standard model gauge group SU(3)(C)xSU(2)(L)xU(1)(Y) using a single 144 of Higgs. The symmetry breaking occurs when the SU(5) 24-plet component of 144 develops a vacuum expectation value. Further, it is possible to obtain from the same 144 a light Higgs doublet necessary for electroweak symmetry breaking using recent ideas of string vacua landscapes and fine-tuning. Thus the breaking of SO(10) down to SU(3)(C)xU(1)(em) can be accomplished with a single Higgs. We analyze this symmetry breaking pattern in the nonsupersymmetric as well as in the supersymmetric SO(10) model. In this scenario masses of the quarks and leptons arise via quartic couplings. We show that the resulting mass pattern is consistent with experimental data, including neutrino oscillations. The model represents an alternative to the currently popular grand unified scenarios.

引用

页数：12

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