Inflating intersecting branes and remarks on the hierarchy problem

被引：30
作者：
Cline, J
Grojean, C
Servant, G
机构：
[1] McGill Univ, Dept Phys, Montreal, PQ H3A 2T8, Canada
[2] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA
[3] Lawrence Berkeley Lab, Theoret Phys Grp, Berkeley, CA 94720 USA
[4] CEA, Serv Phys Theor, F-91191 Gif Sur Yvette, France
来源：
PHYSICS LETTERS B | 2000年 / 472卷 / 3-4期
基金：
美国国家科学基金会;
关键词：
D O I：
10.1016/S0370-2693(99)01471-9
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
Wr generalize solutions of Einstein's equations for intersecting branes in higher dimensional spacetimes to the nonstatic case, modeling an expanding universe. The relation between the Hubble rate, the brane tensions, and the bulk cosmological constant is similar to the case of a single 3-brane in a 5-dimensional spacetime. However, because the bulk inflates as well as the branes, this class of solutions suffers from Newton's constant tending toward zero on the TeV brane, where the Randall-Sundrum mechanism should solve the weak scale hierarchy problem. The strength of gravity remains constant on the Planck brane, however. (C) 2000 Published by Elsevier Science B.V. All rights reserved.
引用
收藏
页码：302 / 308
页数：7
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