Stability of the gauge hierarchy in SU(5)xSU(5)

被引：17

作者：

Barr, SM

机构：

[1] Bartol Research Institute, University of Delaware, Newark, DE

来源：

PHYSICAL REVIEW D | 1997年 / 55卷 / 11期

关键词：

D O I：

10.1103/PhysRevD.55.6775

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

It has been shown that the Dimopoulos-Wilczek (or missing VEV) mechanism for doublet-triplet splitting can be implemented in SU(S)xSU(5) models, which require no adjoint Higgs fields. This is an advantage from the point of view of string theory construction. Here the stability of the gauge hierarchy is examined in detail, and it is shown that it can be guaranteed much more simply than in SO(10). In fact a Z(2) symmetry ensures the stability of the DW form of the expectation values to all orders in GUT-scale VEV's. Tt is also shown that models based on SO(10)xSU(5) have the advantages of SU(5)xSU(5) while permitting complete quark-lepton unification as in SO(10).

引用

页码：6775 / 6779

页数：5

共 24 条

[1] STRING GUTS [J].