Exponential and power-law hierarchies from supergravity

被引：33

作者：

Kehagias, A ^{[1
]}

机构：

[1] CERN, Div Theory, CH-1211 Geneva 23, Switzerland

来源：

PHYSICS LETTERS B | 1999年 / 469卷 / 1-4期

关键词：

D O I：

10.1016/S0370-2693(99)01183-1

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We examine how a d-dimensional mass hierarchy can be generated from a d+ 1-dimensional set up. We introduce a d + 1-dimensional scalar, the hierarchon, which has a potential as in gauged supergravities. We find that when it is in its minimum, there exist solutions of Horava-Witten topology R-d x S-1/Z(2) with domain walls at the fixed points and anti-de Sitter geometry in the bulk. We show that while standard Poincare supergravity leads to power-law hierarchies, (e.g. a power law dependence of masses on the compactification scale), gauged supergravity produce an exponential hierarchy as recently proposed by Randall and Sundrum. (C) 1999 Elsevier Science B.V. All rights reserved.

引用

页码：123 / 128

页数：6

共 32 条

[1] New dimensions at a millimeter to a fermi and superstrings at a TeV [J].