Stabilizing the axion by discrete gauge symmetries

被引：54

作者：

Babu, KS ^{[1
]}

Gogoladze, I ^{[1
]}

Wang, K ^{[1
]}

机构：

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

来源：

PHYSICS LETTERS B | 2003年 / 560卷 / 3-4期

关键词：

D O I：

10.1016/S0370-2693(03)00411-8

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The axion solution to the strong CP problem makes use of a global Peccei-Quinn U(I) symmetry which is susceptible to violations from quantum gravitational effects. We show how discrete gauge symmetries can protect the axion from such violations.. PQ symmetry emerges as an approximate global symmetry from discrete gauge symmetries. Simple models based on Z(N) symmetries with N = 11, 12, etc., are presented realizing the DFSZ axion and the KSVZ axion. The discrete gauge anomalies are canceled by a discrete version of the Green-Schwarz mechanism. In the supersymmetric extension out models provide a natural link between the SUSY breaking scale, the axion scale, and the SUSY-preserving mu term. (C) 2003 Published by Elsevier Science B.V.

引用

页码：214 / 222

页数：9

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